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6800/7000 SeriesAudio and VideoMulti-Demultiplexing ProductsInstallation and Operation Manual
175-000061-00Edition B
Trademarks and Copyright
ADAC, ADCOE, BO/S, Command Control System (CCS), DigiBus, DigiPeek, Digital Glue, DPS, DigiWorks, DTV Glue, Engineering The Big Picture, EventWORKS, EZ HD, Focused on the Future, Genesis, HDTV Glue, HEDCO, Innovision, ISIS, JUNO, LeFont, Leitch, Leitch Network Systems, LNS, LogoMAX, LogoMotion, Media File, MediaPort, MIX BOX, Monarch, Motion File, NEO, OPUS, PanelMAPPER, Pilot, Portal, PROM-Slide, RouterWORKS, StillFile, Still Net, Tekniche, Unilock, VIA, ViewGuard, Xplus, and Leitch XPRESS are trademarks or registered trademarks of Leitch Technology Corporation in the United States, Canada, and/or other countries.All other trademarks are the property of their respective owners.Copyright 2002, Leitch Technology Corporation. All rights reserved. Printed in Canada.
6800/7000 Series Audio and Video
Multi-Demultiplexing Products
Installation and Operation Manual
Edition B
November 2002
Preface
Purpose
This manual details the features, installation procedures, operational procedures, and specifications of the 6800/7000 Series of Audio and Video Multi/Demultiplexing Products.
Audience
This manual is written for technicians and operators responsible for installation, setup, and/or operation of the 6800/7000 Series of Audio and Video Multi/Demultiplexing Products.
Writing Conventions
To enhance your understanding, the authors of this manual have adhered to the following text conventions:
Bold Indicates dialog box, property sheet, field, button, checkbox, listbox, combo box, menu, submenu, window, list, and selection names.
Italics Indicates email addresses, names of books and publications, and first instances of new terms and specialized words that need emphasis.
CAPS Indicates a specific key on the keyboard, such as ENTER, TAB, CTRL, ALT, DELETE.
Code Indicates variables or command-line entries, i.e., a DOS entry, something you type into a field, etc.
> Indicates direction of navigation through a hierarchy of menus and windows.
hyperlink Indicates a jump to another location in the document or elsewhere (such as a website).
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual iii
Preface
Revision History
Edition Date Revision History
A May 1998 Initial release.
B November 2002 • Updated information.
• General reformatting and reorganization of material.
iv 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Preface
Summary of the 6800/7000 Series Product Manuals
Audio/Video/Mux and Demultiplexing ManualChapter 1 ADC-6801 CAV to SDI Converter Module
Chapter 2 ADC-6880 Analog to AES/EBU Digital Converter
Chapter 3 ADM/ASM-680x Embedded Audio Monitoring Module
Chapter 4 DAC-6801 Digital to Analog Component Converter
Chapter 5 DAC-6880 AES/EBU Digital Audio to Analog Audio Converter
Chapter 6 DEC-6801/DES-6801 Decoder/Decoder with Frame Synchronizer Module
Chapter 7 DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer
Chapter 8 ENC-ENS/ENX-6801A Encoder Modules
Chapter 9 MXA-6800-AES and MXA-6801-A2/A4 Audio Multiplexer Module
Chapter10 VFS-6801 Serial Component Frame Synchronizer Module
Chapter 11 VTS-6801 Video Timing Switcher
Appendix A Embedding Modes Graphic Description
Test Series ManualChapter 1 VTG-6801-1 &VTG-6801-1A 4:2:0 & 4:2:2 Serial Digital
Test Generator Module
Chapter 2 VTG-6801-2 Serial Digital Test Generator Module
Chapter 3 DAR-6880 AES/EBU Digital Audio Reference and Tone Generator
Chapter 4 SAI-6800 4:2:2 Safe Area Generator/Inserter Module
Chapter 5 VTG-6800 MIXBOX Frame and Control Assembly
Chapter 6 EDH-6800MB Detection and Handling MIXBOX
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual v
Preface
Distribution and Routing ManualChapter 1 AES-6880 AES/EBU Digital Audio Distribution Amplifier
Module - General
Chapter 2 DNH-6800 DigiNet Hub Module
Chapter 3 EDH-6800-2EDH Detection/Insertion Serial Distribution Amplifier Module
Chapter 4 USM-6800 PAL/NTSC Monitoring Encoder Module
Chapter 5 VDA-6830 Video Distribution Amplifier Module
Chapter 6 VEA-6830 Video Equalizing Amplifier Module
Chapter 7 VEA-6840 Video Equalizing Amplifier Module
Chapter 8 VPD-6830 Programmable Video DA series
Chapter 9 VSD-6801 Serial Digital Distribution Amplifier Module
Chapter 10 VSE-6801 Serial Equalizing Amplifier Module
Chapter 11 VSE-6802 Serial Equalizing Distribution Amplifier
Chapter 12 VSM-6802 Digital Composite Video Signal
Chapter 13 VSM-6804 Digital Composite Video Signal Monitor Module
Chapter 14 VSR-4041 Serial Video Router Module
LogoMotion ManualChapter 1 Logo Utilities for 6800 Series Modules
Chapter 2 LGI-6801 Serial Digital Logo Generator/Inserter Module
Chapter 3 VES-6801 Flash EPROM Side Module
Chapter 4 DSK-6801/3 Downstream Serial Keyer
Chapter 5 DSK-CP1/2 Downstream Serial Keyer Control Panel
vi 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Preface
Frames and Power Supply ManualChapter 1 Mounting Frames
Chapter 2 FR-6801/FR-6801-1 Frames
Chapter 3 FR-6804/FR-6804-1 Frames
Chapter 4 CF-6801 Cooling Frame
Chapter 5 FR-7001 and FR-7000MB MIXBOX
Chapter 6 6801PS Power Supply Module
Chapter 7 6804(-1) Power Supply Module
Chapter 8 7000 Power Supply Module
Chapter 9 6801PS-48 Power Supply Module
Chapter 10 6804PS-1-48 Power Supply Module
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual vii
Preface
Unpacking/Shipping InformationThis product has been carefully inspected, tested and calibrated before shipment to ensure years of stable and troublefree service. Please check the equipment for any visible damage which may have occurred during transit.
Please confirm that all items listed on the packing list have been received. If any item on the packing list is missing, please contact your Leitch dealer. If any item is damaged, please contact the carrier. Ensure that all packaging material is removed from the product and its associated components before installing the unit.
It is suggested that you keep at least one set of original Leitch packaging, in the event that a product needs to be returned for service. If the original packaging is not available, you can purchase replacement packaging from Leitch at a modest cost or supply your own packaging as long as it meets the following criteria:
• Packaging must be able to withstand the product weight.
• Product must be held rigid within the packaging.
• There must be at least 2 inches of space between the product and the container.
• The corners of the product must be protected.
Products that are being returned to Leitch for servicing should be shipped prepaid in the original packaging material if possible. If the product is still within the warranty period, the product will be returned by prepaid shipment after servicing.
Installation InformationIf this product is rack-mountable, it should be mounted in an appropriate rack using the rack-mounting positions and rear support guides provided. It is recommended that each frame be connected to a separate electrical circuit for protection against circuit overloading. If this product relies on forced air cooling, it is recommended that all obstructions to the air flow be removed prior to mounting the frame in the rack.
If this product has a provision for external earth grounding, it is recommended that the frame be grounded to earth via the protective earth ground on the rear panel.
viii 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Preface
Important Safety InstructionsReview the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions.
Servicing
Only qualified personnel should perform service procedures. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
Safety Terms and Symbols
Terms and Symbols in This Manual
Terms and Symbols on the Product
WARNING: Statements identifying conditions or practices that can result in personal injury or loss of life: High voltage is present. Uninsulated dangerous voltage within the product’s enclosure may be sufficient to constitute a risk of electric shock to persons.
CAUTION:Statements identifying conditions or practices that can result in damage to the equipment or other property: Important operating and maintenance (servicing) instructions in the literature accompanying the product.
DANGER: High voltage and indicates a personal injury hazard immediately accessible as one reads the marking.
WARNING: Indicates a personal injury hazard not immediately accessible as one reads the marking.
CAUTION: Indicates a hazard to property including the product or to take attention and refer to the manual.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual ix
Preface
Injury Precautions
Protective ground (earth) terminal.
Fuse: Replace with same type and rating of fuse.
Observe precautions for handling electrostatic-sensitive devices.
WARNING!To reduce the risk of electric shock, do not expose this apparatus to rain or moisture.
WARNING! Potentially lethal voltages are present within this product’s frame during normal operation. The AC power cord must be disconnected from the frame before the top panel is removed. (In frames with multiple power supplies, remove ALL power cords.) Power should not be applied to the frame while the top is open, unless properly trained personnel are servicing the unit.
[PL Poland] Przod zdjeciem pokrywy wyciagnac wtyczke z gniazda sieciowego.
[French] AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR. INSTALLER SUR SUPPORT DE MONTAGE SEULEMENT.
RISK OF ELECTRIC SHOCKDO NOT OPEN
CAUTION
x 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Preface
AVIS - Risque de choc electrique. Ne pas ouvrir.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual xi
Preface
Use Proper Power CordTo avoid fire hazard, use only the power cord specified for this product.
Ground the ProductDo not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
[United Kingdom] WARNING: THIS APPLIANCE MUST BE EARTHED.
[Sweden] APPARATEN SKALL ANSLUTAS TILL JORDAT UTTAG NÄR DEN ANSLUTS TILL ETT NÄTVERK.
Do Not Operate Without CoversTo avoid electrical shock or fire hazard, do not operate this product with covers or panels removed.
Use Proper FuseTo avoid fire hazard, use only the fuse type and rating specified for this product.
Do Not Operate in Wet/Damp ConditionsTo reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
Do Not Operate in an Explosive AtmosphereTo avoid injury or fire hazard, do not operate this product in an explosive atmosphere.
Avoid Exposed CircuitryTo avoid injury, remove jewelry such as rings, watches, and other metallic objects. Do not touch exposed connections and components when power is present.
xii 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Preface
Product Damage Precautions
Use Proper Power SourceDo not operate this product from a power source that supplies more than the specified voltage.
Use Proper Voltage SettingBefore applying power, ensure that the line selector is in the proper position for the power source being used.
Provide Proper VentilationTo prevent product overheating, provide proper ventilation.
Do Not Block Any Ventilation OpeningsDo not block any of the ventilation openings. Install in accordance with the manufacturer’s instructions.
Only Use Attachments/Accessories Specified by the Manufacturer
Do Not Operate With Suspected FailuresRefer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
For Products with Multiple Power Cords:CAUTION: This unit can have more than one power supply cord. To de-energize the internal circuitry, disconnect all power cords before servicing.
[Norwegian] ADVARSEL: Utstyret kan ha mere ennn en tilførselsledning. For å gjore interne deler spennigsløse må alle tilførselsledningene trekkes ut.
[Sweden] VARNING: Denna apparat har mer än en nätanslutning. Samtliga nätkablar måste bortkopplas för att göra de interna kretsarna spänningsfria.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual xiii
Preface
Do Not Use This Apparatus Near WaterDo not expose this apparatus to dripping or splashing water. Ensure that no objects filled with liquid, such as vases or cups, are placed on the apparatus.
Clean Only With A Dry Cloth
Keep Product Away from Heat SourcesDo not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
Install Near Socket OutletThe equipment shall be installed near the socket outlet, and a disconnect device shall be easily accessible.
Protect the Power CordProtect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
Attention:Observe precautions for handling electrostatic-sensitive devices. See “Preventing Electrostatic Discharge” below for details.
Fuse Replacement:CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH THE SAME TYPE OF FUSE.[French]ATTENTION: REMPLACER UNIQUEMENT PAR UN FUSIBLE DE MEME TYPE.
xiv 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Preface
Battery Use Warnings
CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY PLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE MANUFACTURER. DISCARD USED BATTERIES ACCORDING TO THE MANUFACTURER’S INSTRUCTIONS.
[FI Finland] VAROITUS: Paristo voi rajahtaa, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan valmistajan suosittelemaan tyyppun. Havita kaytetty paristo valmistajan ohjeiden mukaisesti.
[SE Sweden] VARNING: Explosionsfara vid felaktigt batteribyte. Anvand samma batterityp eller en eller en ekvivalent typ som rekommenderas av tillverkaren. Kassera anvant batteri enligt fabrikantens instruktion.
[D Denmark]
[KO Korean]
Advarsel! Lithiumbatteri. Eksplosionsfare ved fejlagtig handtering. Udskiftning ma kun ske med batteri af samme fabrikat oq type. Lever det brugte batteri tilbage till leverandoren.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual xv
Preface
Preventing Electrostatic Discharge
CAUTION: Electrostatic discharge (ESD) can damage components in the product. To prevent ESD, observe these precautions when directed to do so:
• Use a Ground Strap. Wear a grounded antistatic wrist strap to discharge the static voltage from your body while installing or removing sensitive components.
• Use a Safe Work Area. Do not use any devices capable of generating or holding a static charge in the work area where you install or remove sensitive components. Avoid handling sensitive components in areas that have a floor or benchtop surface capable of generating a static charge.
• Handle Components Carefully. Do not slide sensitive components over any surface. Do not touch exposed connector pins. Handle sensitive components as little as possible.
• Transport and Store Carefully. Transport and store sensitive components in a static-protected bag or container.
xvi 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Preface
Certifications and CompliancesThis product has been tested and found to comply with the following CE, FCC, UL, ICES and CSA standards:
EMC Standards
EN55014 Limits and methods of measurement of radio disturbance characteristics of electric motor-operated and thermal appliances for household and similar purposes, electric tools and similar electric apparatus.
EN55022 Limits and methods of measurement of radio disturbance characteristics of information technology equipment Class A.
EN55103-1 Electromagnetic compatibility—Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use, Part 1: Emission, Environment E4.
EN55103-2 Electromagnetic compatibility—Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use, Part 2: Emission, Environment E4.
EN61000-4-2 Electrostatic discharge requirements “ESD” 2kV CD, 4kV AD.
EN61000-4-3 Radiated radio-frequency electromagnetic field immunity test 1V/m 1kHz 80% AM, 80-1000MHz.
EN61000-4-4 Electrical Fast transient requirements “Burst”, 0.5kV Sig. & Ctrl. Lines 0.5kV a.c. & d.c. Power line, 0.5kV functional earth.
EN61000-4-5 Surge Immunity test 0.5kV a.c. Power line.
EN61000-4-6 Immunity to conducted disturbances induced by radio frequency fields 1V rms 0.15-80MHz Sig. & Ctrl. Lines, 3V rms 0.15-80MHz d.c. Power line, 1V rms 0.15-80MHz a.c. Power line, 1V rms 0.15-80MHz functional earth.
EN61000-4-11 Voltage dips, short interruptions and voltage variations-immunity tests.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual xvii
Preface
per the provision of the Electromagnetic Compatibility Directive 89/336/EEC of 3 May 1989 as amended by 92/31EEC of 28 April 1992 and 93/68/EEC, Article 5 of 22 July 1993.
These devices are for professional use only and comply with Part 15 of FCC rules. Operation is subject to the following two conditions:
1. These devices may cause interference to Radio and TV receivers in residential areas.
2. These devices will accept any interference received, including interference that may cause undesired operations.
These devices do not exceed the class A limits for radio noise emissions from digital apparatus as set out in the interference standard entitled “Digital apparatus”, ICES-003 of the Canadian Department of Communications.
Safety Standards
Safety Standards (6801PS-48) Only
EN60065 Safety requirements for mains operated electronic and related apparatus for household and similar general use [IEC 60065: 1985, 5th Edition + A1: 1987 + A2: 1989 + A3: 1992, (modified)], per the provision of the Low-Voltage Directive 73/23/EEC of February 19, 1973, as amended by 93/68/EEC.
UL 1419 Safety requirement for professional Audio and Video equipment.
CSA C22.2No. 1
Safety requirements for audio, video and similar electronic equipment.
EN 60950-1992 Safety of information technology equipment, including electrical business equipment (Amendments A1: 1993, A2: 1993, A3: 1995, A4: 1997), per the provision of the Low-Voltage Directive 73/23/EEC of February 19, 1973 as amended by 93/68/EEC.
UL 1950 Safety of information technology equipment, including electrical business equipment.
CSA C22.2 No. 950-95
Safety of information technology equipment, including electrical business equipment.
xviii 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Preface
Safety Standards: (6801PS-1-48) Only
EN 60950-2000 Safety of information technology equipment, including electrical business equipment (IEC-60950:1999), per the provision of the Low-Voltage Directive 73/23/EEC of February 19, 1973 as amended by 93/68/EEC.
UL 1950 Safety of information technology equipment, including electrical business equipment.
CSA C22.2No. 950
Safety of information technology equipment, including electrical business equipment.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual xix
Preface
xx 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Contents
Chapter 1: ADC-6801 CAV to SDI Converter Module............................................................1
Overview ..................................................................................................... 1
Features ....................................................................................................... 2
Specifications .............................................................................................. 3
Input .................................................................................................... 3
Component Analog Input ................................................................... 3
Filtering as per CCIR 601 Specifications ............................................ 4
Frequency Response ........................................................................... 4
Signal to Noise Ratio .......................................................................... 4
Output ................................................................................................. 4
Installation ..................................................................................................5
Module Edge Layout ................................................................................... 6
Setup and Control ....................................................................................... 8
Front Edge Controls ............................................................................ 8
Jumpers .............................................................................................. 10
Standard Select Function .................................................................. 11
Analog Adjustments ................................................................................. 14
Sync Phase ......................................................................................... 14
Cb Gain and Cr Gain ......................................................................... 14
Cb Phase and Cr Phase ...................................................................... 14
Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter................................................15
Overview ................................................................................................... 15
Operation .................................................................................................. 17
Analog Audio Input .......................................................................... 17
External Sampling Reference ............................................................ 18
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual xxi
Contents
Configuration ........................................................................................... 19
Attenuation Jumpers ......................................................................... 19
AC- or DC-Coupling ........................................................................ 21
Gain ................................................................................................... 22
Sampling Reference Selection Switch ............................................... 23
Sampling Frequency Selection Switch .............................................. 23
Reset Button ...................................................................................... 24
LED Indicators .......................................................................................... 25
Power LED ........................................................................................ 25
Sampling Frequency .......................................................................... 26
External Reference Present ............................................................... 26
External Reference Error .................................................................. 26
Specifications ............................................................................................ 27
Analog Audio Input .......................................................................... 27
Reference Input ................................................................................. 27
Digital Output ................................................................................... 27
Performance Specifications .............................................................. 28
Power Specifications ......................................................................... 28
ADC-6880 ................................................................................................. 29
Implementation Chart ...................................................................... 29
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules .. 31
Overview ................................................................................................... 31
Frames and Modules ................................................................................ 32
Serial Video Input ............................................................................. 34
Serial Video Outputs (ASM-6800 only) ........................................... 34
Analog Audio Outputs ...................................................................... 35
Balanced Audio Outputs ................................................................... 36
Module Edge Controls and Indicators ............................................. 37
Channel Swap Control ...................................................................... 38
Monitor Swap .................................................................................... 39
Analog Output Levels ....................................................................... 39
Audio Group Selection ..................................................................... 40
Module Edge Indicator Descriptions ............................................... 40
Modules and Adaptors ............................................................................. 41
ASM-6800 Module ............................................................................ 41
ADM/ASM Module .......................................................................... 42
xxii 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Contents
Audio Adapters ................................................................................. 43
Jumper Configurations ............................................................................. 44
Chapter 4: DAC-6801 Digital to Analog Component Converter ..................................................47
Overview ................................................................................................... 47
Features ..................................................................................................... 48
Installation ................................................................................................ 49
Front Edge Layout ............................................................................. 49
LEDs .................................................................................................. 50
Front Edge Control ................................................................................... 52
Switches ............................................................................................. 54
Color Bar Levels ................................................................................ 55
Analog Adjustments ................................................................................. 57
Specifications ............................................................................................ 58
Serial Video Input ............................................................................. 58
Component Outputs ......................................................................... 58
Sync Outputs ..................................................................................... 59
Power Consumption ......................................................................... 59
Chapter 5: DAC-6880 AES/EBU Digital Audio to Analog Audio Converter...............................61
Overview ................................................................................................... 61
Operation .................................................................................................. 63
Input Impedance ............................................................................... 63
Terminated or Looping Inputs ......................................................... 63
Full-Scale Analog Output Level ........................................................ 63
Output Level Adjustment ................................................................. 64
Power and Error Indicators .............................................................. 64
Rear Module/Adapter Connections ................................................. 65
Specifications ............................................................................................ 66
Input .................................................................................................. 66
Output ............................................................................................... 66
DAC-6880 ................................................................................................. 67
Implementation Chart ...................................................................... 67
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual xxiii
Contents
Chapter 6: DEC-6801/DES-6801 Decoder with Frame Synchronizer Module ............... 69
Overview ................................................................................................... 69
Specifications ............................................................................................ 70
Analog Video Input .......................................................................... 70
Analog Video Processing .................................................................. 70
Digital Video Processing ................................................................... 70
Serial Video Outputs ......................................................................... 71
Phasing .............................................................................................. 71
Storage ............................................................................................... 71
Reference Input ................................................................................. 71
Power Dissipation ............................................................................. 72
Installation ................................................................................................ 73
Operations ................................................................................................ 74
Controls ............................................................................................. 74
LED Indicators .................................................................................. 74
Jumpers ............................................................................................. 75
Switches ............................................................................................. 75
Frame ID ............................................................................................ 75
Bank A1 ..................................................................................................... 76
Bank B2 ..................................................................................................... 78
Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer ........... 79
Overview ................................................................................................... 79
Features ..................................................................................................... 80
Signal Flow ................................................................................................ 81
Front and Back Modules .......................................................................... 82
Front Module .................................................................................... 82
Back Module and Adhesive Overlay ................................................. 83
Installation ................................................................................................ 85
Jumper Settings ................................................................................. 85
Jumper Configurations .................................................................... 87
Operation .................................................................................................. 88
Overview ............................................................................................ 88
Controls ............................................................................................. 88
LED Indicators .................................................................................. 89
Changing Parameter Settings ............................................................ 91
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Parameter Groups ..................................................................................... 92
Common Parameter Groups A and B (NTSC and PAL-B) ............. 93
Parameter Groups C and D (NTSC) ................................................. 97
Parameter Groups C and D (PAL-B) ................................................ 99
Audio Sync Interface (DES-6804 Only) ................................................. 101
Specifications .......................................................................................... 102
Analog Video Input ........................................................................ 102
Analog Video Processing ................................................................ 102
Digital Video Processing ................................................................. 102
Video Outputs ................................................................................. 103
Phasing (DES-6804) ........................................................................ 104
Storage (DES-6804) ......................................................................... 104
Audio Synchronization Interface Output (DES-6804) .................. 104
Reference Input (DES-6804) .......................................................... 104
Module Start-Up ............................................................................. 105
Typical Power Dissipation .............................................................. 105
Chapter 8: ENC/ENS/ENX-6801/M Encoder Modules and Accessories ........................... 107
Overview ................................................................................................. 107
Features ................................................................................................... 108
Specifications .......................................................................................... 109
Serial Video Inputs .......................................................................... 109
Video Outputs ................................................................................. 109
Phasing Range .............................................................................. 111
Power Consumption ....................................................................... 111
Reference Inputs ............................................................................. 111
Installation .............................................................................................. 113
Block Diagram ........................................................................................ 114
Deserializer and FIFO Delay .......................................................... 114
Multi-Standard Encoder and Output Buffer ................................. 115
Genlock ........................................................................................... 115
User-Controlled Parameters .................................................................. 116
ENC/ENS-6801 Bank A .................................................................. 116
ENC/ENS-6801 Bank B ................................................................... 117
ENX-6801 Bank A ........................................................................... 118
ENX-6801 Bank B ........................................................................... 119
Delay Mode ..................................................................................... 120
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Contents
Line Store ......................................................................................... 120
Input Signal ..................................................................................... 120
Output Signal .................................................................................. 120
Frame Buffer .................................................................................... 121
Line Buffer ....................................................................................... 121
Chapter 9: MXA-6800-AES and MXA-6801-A2/A4 Video/Audio Multiplexer Module .............................123
Overview ................................................................................................. 123
Features ................................................................................................... 124
Specifications .......................................................................................... 127
Serial Video Inputs ......................................................................... 127
Serial Video Outputs ....................................................................... 127
Audio ............................................................................................... 128
MXA-6800-AES .............................................................................. 128
MXA-6801-A2/A4 ........................................................................... 128
Terminology .................................................................................... 129
Installation .............................................................................................. 130
Jumper Settings ....................................................................................... 135
MXA-6800-AES .............................................................................. 136
MXA-6800-A2/A4 ........................................................................... 137
Operation ........................................................................................ 137
Common Mode Adjust Potentiometers (pots) .............................. 138
LED Indicators (MXA-6800-AES) ................................................. 138
LED Indicators (MXA-6801-A2/A4) ............................................. 140
Toggle Switch and LED Display Operation .................................... 141
Control Parameters Summary ............................................................... 142
Operator Mode 1 (OS1) .................................................................. 143
Operator Mode 2 (OS2) .................................................................. 145
Operator Mode 3 (OS3) .................................................................. 146
Control Parameter Details ...................................................................... 147
Operator Mode 1 ............................................................................ 147
Operator Mode 2 ............................................................................. 149
Operator Mode 3 ............................................................................. 152
Audio Error Messages ..................................................................... 153
Lock Mode ....................................................................................... 154
Audio Error Messages ..................................................................... 154
Gain Value ....................................................................................... 154
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Switch Position 2 and Function ..................................................... 155
Mute Duration ................................................................................. 155
Stereo Mode .................................................................................... 155
Audio Error Numbers ..................................................................... 155
Swapping Channels via Remote Control ............................................... 156
Audio Embedding ........................................................................... 156
Converting Hex to Decimal Numbers ................................................... 158
MXA-6800-AES ...................................................................................... 159
MXA-6801-A2/A4 .................................................................................. 161
Chapter 10: VFS-6801 Serial Component Frame Synchronizer Module ................................................. 163
Overview ................................................................................................. 163
Specifications .......................................................................................... 164
Serial Video Inputs .......................................................................... 164
Serial Video Outputs ....................................................................... 164
Phasing ............................................................................................ 165
Storage ............................................................................................. 165
Reference Input ............................................................................... 165
Installation .............................................................................................. 166
Operations .............................................................................................. 167
Controls ........................................................................................... 167
LED Indicators ................................................................................ 167
Jumpers ............................................................................................ 167
Switches ........................................................................................... 168
Chapter 11: VTS-6801 Video Timing Switcher........ 171Overview ................................................................................................. 171
Features ................................................................................................... 172
Specifications .......................................................................................... 173
Serial Video Inputs .......................................................................... 173
Serial Video Outputs ....................................................................... 173
Analog Reference ............................................................................ 174
Load Supply ..................................................................................... 174
Control ............................................................................................ 174
Operation ........................................................................................ 174
LED Indicators ................................................................................ 175
Toggle Switch and Hex Switch Operation ............................................. 178
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual xxvii
Contents
Control Functions ........................................................................... 178
Control Function Details ........................................................................ 180
Replace Serial Time Delay (SW1 – position E) LED and Time Indication ........................................................................................ 183
Input Switching with GPI Controls ........................................................ 185
Polarity Active High ........................................................................ 185
Polarity Active Low ......................................................................... 185
General Issues ......................................................................................... 186
Applications ............................................................................................ 187
Clean-Switch Settings ...................................................................... 187
2- by -1 Clean-Switch Settings ........................................................ 187
Digital Adjusted Line Delay ............................................................ 188
Backup Video Switch ...................................................................... 189
Appendix A: Embedding Modes Graphic Description ...................................................................191
Overview ................................................................................................. 191
Left Mode Justify .................................................................................... 192
Follow Mode Part 1 ................................................................................ 193
Follow Mode Part 2 ................................................................................ 194
Overwrite Mode Part 1 ........................................................................... 195
Overwrite Mode Part 2 ........................................................................... 196
Strip ADS and Left Justify ....................................................................... 197
Strip ADS and Clean ............................................................................... 198
xxviii 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Chapter 1
ADC-6801 CAV to SDI Converter Module
OverviewThe ADC-6801 addresses the requirements of broadcasters and video professionals for component analog-to digital 4:2:2 conversion. It provides ten-bit (or optionally eight-bit) conversions from 525 and 625 line analog component signals to SMPTE 259-C serial digital video. The ADC-6801 supports the following standards:
• SMPTE/EBU GBR and YPbPr
• NTSC-related GBR
• MII-related GBR and YPbPr
• BETACAM YPbPr in 625 and 525 line standards, with and without setup as appropriate.
Specifications and designs are subject to change without notice.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 1
Chapter 1: ADC-6801 CAV to SDI Converter Module Features
FeaturesThe ADC-6801 has the following features:
• 10-bit default, with option setting for 8-bit conversion
• Component analog input with color space conversion,
GBR or YPbPr
• Looping inputs
• Two serial digital SMPTE 259-C (270 Mb/s) outputs
• Selectable sync from Y/G, external color black or TTL level
• Digital filtering as per CCIR 601 specifications (-12 dB at Nyquist)
• 2x oversampling
• Variable vertical blanking up to line 19 for 525 and line 22 for 625
• EDH insertion
• Horizontal blanking markers for analog blanking indication
• Low power 7.5 W
2 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Specifications Chapter 1: ADC-6801 CAV to SDI Converter Module
Specifications
Input
Component Analog Input
Item Specifications
Sampling Rate 27 MHz Y 13.5 MHz Cr/Cb
Quantization 10 bits
Input Standards SMPTE /EBU, MII, Betacam component or RGB at 525 or 625 line rates(External sync and G/Y, B/B-Y, R/R-Y loop through)
5 BNCs • Ext. Sync
• Loop through G/Y
• B/B-Y
• R/R-Y
Item Specifications
Connector BNC per IEC 169-8
Impedance Loop-through high impedance or 75Ω
Signal Level 1 Vp-p nominal with sync, 0.7 Vp-p nominal
Adjustable Gain ± 10%
Time Adjustment Range ± 1.8 µs
Return Loss > 40 dB to 5.5 MHz
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 3
Chapter 1: ADC-6801 CAV to SDI Converter Module Specifications
Filtering as per CCIR 601 Specifications
Frequency Response
Signal to Noise Ratio
Output
Item Specifications
Y Channel ± 0.1 dB to 5.5 MHz
Cr, Cb Channels ± 0.2 dB to 2.75 MHz
Item Specifications
On all Channels > 64 dB RMS. relative to 0.714 V, 10 kHz to 5.5 MHz
Interchannel Crosstalk <-50 dB
2T K Factor <0.5%
Luminance Non-linearity <1%
Gain Alignment <1%, typically better than 0.5%
DC Clamping Typically within 1 quantization level on field average
Item Specifications
Output Standard 4:2:2, two BNCs as per SMPTE 259
Input to Output Delay 3.6 µs
4 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Installation Chapter 1: ADC-6801 CAV to SDI Converter Module
InstallationThis module must be installed into an FR-6804 or FR-6804-1 mounting frame to meet CE requirements. The back module layout is shown below and is connected as follows:
Figure 1-1. ADC-6801 Back Module and Overlay
The inputs on the back module are looping. If the loop is not required, external terminations must be connected to the spare BNCs.
The external sync input can be terminated on-board by installing jumper J8 or can be externally looped. See Figure 1-2, on page 7 and see also “Setup and Control”, on page 8 for further information.
Signal Descriptions
Sync In External color black or TTL level sync (optional)
G/Y Green or Y signal (looped)
B/B-Y Blue or B-Y signal (looped)
R/R-Y Red or R-Y signal (looped)
Serial Out SMPTE 259-C serial outputs
ADC-6801-M
SERIALOUT
R/R-YLOOP
B/B-YLOOP
G/YLOOP SYNC
IN
This back module is used when the ADC-6801 module is installed into either a FR-7001 series or FR-7000MB MIX BOX frame. This overlay is used when
the ADC-6801 module is installed into a 6800 series frame.
ADC-6801SYNC
IN
SERIALOUT
G/Y LOOP
B/B-Y LOOP
R/R-Y LOOP
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 5
Chapter 1: ADC-6801 CAV to SDI Converter Module Module Edge Layout
Module Edge LayoutThe table below describes the SW1 Hex switch positions and functions:
Position Function
0 Operate
1 Standard Select
2 YCrCb Gain
3 Cb Gain
4 Cr Gain
5 Y Offset
6 Cb Offset
7 Cr Offset
8 H Phase
9 Luma Phase
A Split Screen
B Markers
C Color Bars
D Vertical Blanking
E Factory Recall
F Reserved
6 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Module Edge Layout Chapter 1: ADC-6801 CAV to SDI Converter Module
Figure 1-2. Front Edge Layout and Controls
TOGSW2
LEDsHEXSW1
ADC-6801
525
AUTO
625
LOC
KSM
PTE
BETA
M-II
NTS
CG
BR
Y-Pr
-Pb
SETU
PSY
NC
G/Y
SYN
C T
TLSY
NC
BLK
8BIT
MO
DE
ACTI
VITY
J6: OP/CAL
J7: OP/CAL
ConfigError
J5: OP/CAL
J8: HI-Z / 75U4
System FirmwareSyncPhase
CRPhase
CBPhase
CBGain
CRGain
J5, J6 and J7 must be in OP position for correct board operation.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 7
Chapter 1: ADC-6801 CAV to SDI Converter Module Setup and Control
Setup and Control
Front Edge ControlsThe operation of the ADC-6801 is via the front edge controls, the SW2 TOG (toggle) switch and the SW1 Hex switch. The Hex switch selects the parameter to be adjusted/selected while the Toggle switch performs the adjustment/selection.
SW1 Position Function Purpose SW2
PositionSW2Actions
0 Normal Normal Operation UP DN
No Action
1 Standard Select
Standard selection is achieved by setting the HEX switch in position 1. Toggling SW2 up moves the selection through all of the modes. Toggling SW2 down changes the selection inside of the mode. The Active mode selection is indicated by the current selection LED flashing.
UP DN
Change ModeChange Selection
2 YCrCb Gain
Changes the overall gain on all three channels at the same time to compensate for variable input gains.
UP DN
Increase GainDecrease Gain
3 Cb Gain Changes the gain on the Cb channel independently from the other channels.
UP DN
Increase GainDecrease Gain
4 Cr Gain Changes the gain on the Cr channel independently from the other channels.
UP DN
Increase GainDecrease Gain
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Setup and Control Chapter 1: ADC-6801 CAV to SDI Converter Module
5 Y Offset Changes the DC offset on the Y channel independently from the other channels.
UP DN
Increase GainDecrease Gain
6 Cb Offset Changes the DC offset on the Cb channel independently from the other channels.
UP DN
Increase GainDecrease Gain
7 Cr Offset Changes the DC offset on the Cr channel independently from the other channels.
UP DN
Increase GainDecrease Gain
8 Horizontal Phase
Changes the timing adjustments between the input video and the sync reference. The adjustment is made in 27 MHz (37 ns) increments or decrements.
UP DN
Increase GainDecrease Gain
9 Luma Phase
Adjusts the 13.5 MHz cycle time delay between Y and the Cb/Cr channels.
UP DN
Increase GainDecrease Gain
A Split Screen Enables a vertical split between the input signal and the internally generated color bars.
UP DN
Enabled Disabled
B Horizontal Markers
Enables the internally generated horizontal markers. The markers indicate the start and end of analog blanking on the digital wider line.
UP DN
Enabled Disabled
SW1 Position Function Purpose SW2
PositionSW2Actions
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 9
Chapter 1: ADC-6801 CAV to SDI Converter Module Setup and Control
JumpersUse jumper J8 to terminates the external sync input with 75Ω, or leave it at a high impedance (HI-Z) state for use during external loop through of the sync input.
Jumpers J5 and J7 are for factory use only during board calibration and should be in the OP position for correct board operation.
C Internal Color Bars
Enables the internally generated color bars signal.The bars are 100% luma and 75% chroma,100/0/75/0.
UP DN
Enabled Disabled
D Vertical Blanking
Varies the blanking width up to line 19 in 525 and line 22 in 625 standard.
UP DN
Increase GainDecrease Gain
E Factory Recall
Recalls the factory auto calibrated levels for the given input. This recall resets all of the user offsets to zero and restores the factory Luma and Horizontal phases. See “Factory Recall Standards” on page 11for further information, it shows the various levels as specified for each standard. Each refers to 100% color bar levels, 100/0/100/0 or 100/7.5/100/0 with setup.
UP DN
RecallRecall
F Reserved
SW1 Position Function Purpose SW2
PositionSW2Actions
Internal color bars are not rate limited, so should not be used “on-air”, as they are intended as an alignment aid only.
10 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Setup and Control Chapter 1: ADC-6801 CAV to SDI Converter Module
Standard Select FunctionStandard selection is achieved by setting the SW1 Hex switch to position 1. Toggling SW2 up moves the selection through all of the modes. Toggling SW2 down changes the selection inside the mode. The Active mode selection is indicated by the current selection LED flashing.
The table below describes the modes, selections, and purpose of the Standard select function:
Mode Selections Purpose
Standard 525Auto625
Selects 525 line or 625 line input. The Auto position will automatically determine the input line standard and set the system accordingly.
Format SMPTE BETA MII NTSC
Selects the input format: SMPTE, BETA, MII, or NTSC.Matrix selects the input matrix: GBR or YPbPr.
Matrix GBR YPbPr
Selects the input matrix, GBR, or YPbPr.
Setup On/off Setup consists of On/Off control based on input standard. When On, the setup is removed from the analog signal prior to sampling.
Sync Source C/YBLKTTL
Sync source selects are as follows:
• Internal from Y/G channel
• External color black
• External TTL level
Data Width 10 BIT8 BIT
Data-width is selectable between 10-bit and 8-bit. In 8-bit mode. the sampled 10-bit data is rounded to 8 bits.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 11
Chapter 1: ADC-6801 CAV to SDI Converter Module Setup and Control
525, YPbPr, with No Setup Y B-Y R-Y
SMPTE 700 mV 700 mV 700 mV
**BETA 714 mV 1008 mV 1008 mV
MII 700 mV 648 mV 648 mV
NTSC Invalid
525, YPbPr, with Setup Y B-Y R-Y
SMPTE Invalid
*BETA 714 mVp-p660 mV, 54 mVsetup
934 mV 934 mV
MII 700 mVp-p648 mV, 52 mVsetup
648 mV 648 mV
NTSC Invalid
525, GBR, with No Setup G B R
SMPTE 700 mV 700 mV 700 mV
*BETA Invalid
MII 700 mV 700 mV 700 mV
NTSC 714 mV 714 mV 714 mV
525, GBR, with Setup G B R
SMPTE Invalid
*BETA Invalid
MII-related 700 mVp-p648 mV, 52 mVsetup
700 mVp-p648 mV, 52 mV setup
700 mVp-p648 mV, 52 mVsetup
Illegal standards can be selected, indicated by flashing Activity LED. In this situation, the system software will choose the closest standard and operate from that standard. User offsets to illegal standards are permitted, but they are not stored. See “Standard Select Function” on page 11 for a list of calibrated standard settings.
*Old, non-SMPTE/EBU BETACAM levels.** Used in Japan.
12 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Setup and Control Chapter 1: ADC-6801 CAV to SDI Converter Module
525, GBR, with Setup G B R
NTSC-related 714 mVp-p660 mV, 54 mVsetup
714mVp-p660mV, 54mV setup
714mVp-p660mV, 54mVsetup
625, YPbPr Y B-Y R-Y
EBU 700 mV 700 mV 700 mV
*BETA non-EBU 700 mV 934 mV 934 mV
MII-related Invalid
NTSC-related Invalid
625, GBR G B R
EBU 700 mV 700 mV 700 mV
BETA Invalid
MII Invalid
NTSC Invalid
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 13
Chapter 1: ADC-6801 CAV to SDI Converter Module Analog Adjustments
Analog Adjustments
Sync PhaseSelects fine phasing to the system sync signal within one 27 MHz cycle or 37 ns.
Cb Gain and Cr GainUsed to null the gain errors between the GBR to YPbPr analog matrix. They are set in the factory and there should be no need to adjust them.
Cb Phase and Cr PhaseSelects fine phasing of the CB and CR channels to the Y channel within ± 5 ns. These are set in the factory, and there is no need to readjust them.
14 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Chapter 2
ADC-6880 Analog to AES/EBUDigital Audio Converter
OverviewThe ADC-6880 analog to digital audio converter converts two channels of balanced analog audio into a single AES3-1992 digital audio signal at 20-bit resolution. It can be used in any of the Leitch 6800 or 7000 series frames, and can be used as a standalone A-to-D converter, or in conjunction with several A-to-D converters linked by a common external sampling reference signal. The ADC-6880 is available with 75Ω unbalanced digital outputs when used in the 6800 series frame, or 75Ω unbalanced and 110Ω balanced digital outputs when used in a 7000 series frame.
The ADC-6880 utilizes a 20-bit, 64X oversampling Sigma-Delta A-to-D converter that can sample the audio signal at 48 kHz or 44.1 kHz, based on an external reference signal, or on an internal reference signal generated on board. The audio signal may also be sampled at variable rates from 32 kHz to 50 kHz, based on an external reference signal.
The input to the ADC-6880 can be AC- or DC-coupled, and the input attenuation can be set in calibrated 2 dB increments from +16 dBu to +30 dBu maximum analog audio input levels. A gain control allows continuous adjustment of ± 2 dB.
Specifications and designs are subject to change without notice.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 15
Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter Overview
Figure 2-1. ADC-6880 Block Diagram
Two 110 BalancedAES Outputs
(Only available when installed in 7000 Series frames)
Ω
Four 75 CoaxialAES Outputs
Ω
StereoAnalogAudioInputs
ExternalAES
SamplingReference
InputLevelAdjust
InputLevelAdjust
485Drivers
AESFormatting
20-bitA to D
+
+
-
-
SamplingClock
Generator
16 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Operation Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter
Operation
Analog Audio InputThe ADC-6880 has two balanced audio input channels that are typically used for stereo audio inputs (left and right). The audio input stage processes the analog audio signal prior to its conversion to a digital signal. In order to accommodate various nominal analog audio levels, each input channel has a selectable attenuator that allows the full-scale digital output level (0 dBFS) to correspond to the user’s maximum audio signal level. The attenuator can be set in 2 dB increments from +16 dBu to +30 dBu. The factory default setting is +28 dBu.
Gain can be adjusted on each channel over a ± 2 dB range. The gain adjustments are set at the factory from a high-precision audio test reference signal such that the full-scale digital output level (0 dBFS) corresponds precisely with the calibrated selectable attenuator positions of +16 dBu to +30 dBu (described above). The gain can be adjusted by the user to match specific level requirements for full-scale digital audio signal levels.
In addition to performing audio-level attenuation, the analog input stage allows the analog audio inputs to be AC- or DC-coupled. The factory default is AC-coupled, and this is the recommended mode of operation. If the ADC-6880 is set to DC-coupled, any DC signal present on the analog audio input signals will be a source of error in the A-to-D conversion. The analog input stage rejects common mode signals that may be present on the audio input signals and provides over-voltage protection for the A-to-D converter.
See “Configuration”, on page 19 for detailed information on attenuation/gain setting and AC/DC-coupled selection.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 17
Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter Operation
External Sampling Reference The ADC-6880 external sampling reference input is a 75Ω looping BNC input that allows multiple units to be synchronized to a common AES11 sampling reference signal, such as that generated from the Leitch DAR-6880 reference generator. A standard AES3 digital audio signal may also be used. The ADC-6880 cannot accept word clock, or a video signal, as a reference input. The ADC-6880 can be locked to a video signal through the use of Leitch’s DAR-6880 reference generator, which can be locked to video.
See “Attenuation Jumpers”, on page 19 for detailed information on selecting the sampling reference.
18 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Configuration Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter
ConfigurationThere are several settings on the ADC-6880 necessary for proper operation. See “Attenuation Jumpers” below.
Attenuation JumpersThe attenuation jumpers allow the digital output signal level to be set over a 14 dB range, from +16 dBu analog input = 0 dBFS digital output, to +30 dBu analog input = 0 dBFS digital output, in calibrated 2 dB increments. This range of input levels allows operators to set the ADC-6880 such that the full-scale digital output (0 dBFS) will match their maximum analog audio signal level.
Because the attenuation network is of sufficient precision, the gain potentiometers do not have to be readjusted when changing input attenuation jumper settings. This allows you to set the attenuation jumper to the required setting without having to readjust the gain potentiometers.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 19
Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter Configuration
.
Figure 2-2. Attenuation Jumper Settings
ADC-6880
Jumpers Level
J1 & J12
J2 & J13
J3 & J14
J4 & J15
J6 & J17
J5 & J16
J7 & J18
J8 & J19
16 dBu
18 dBu
20 dBu
22 dBu
26 dBu
24 dBu
28 dBu
30 dBu
To set the required level, apply jumpersto the proper set of jumper prongs.
This example shows that 28 dBu is selected.
20 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Configuration Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter
AC- or DC-CouplingThese jumpers allow the analog audio input to be AC- or DC-coupled. AC coupling is the default setting and prevents the ADC-6880 from being disturbed by a DC voltage on the analog input signal.
Figure 2-3. AC- or DC-Coupling Configuration
ADC-6880
For DC coupled input,set J9, J10, J20 and J21
to the DC position as shown.
For AC coupled input,set J9, J10, J20 and J21
to the AC position as shown.
For DC coupled input,set J9, J10, J20 and J21
to the DC position as shown.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 21
Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter Configuration
GainGain adjustments R113 (left channel) and R15 (right channel) provide approximately ± 2 dB of gain on each channel. This allows the output digital signal level to be matched to a known analog input level from a test generator.
Figure 2-4. Card-Edge View
R15 and R113 aremulti-turn potentiometersused to adjust gain.
R21 and R125 are multi-turnpotentiometers used to adjustcommon mode rejection. These are factory set and adjustment is not normally required.
R15R21
SW3
SW2
AUTOINT
EXT
48 kHz
44.1 kHz
Gain AdjustRight Channel
Green LED
Red LEDYellow LEDGreen LEDGreen LED
PWR
REF ERREXT REF44.1 kHz
48 kHz
Gain AdjustLeft Channel
R125
R113
SW1ResetButton
22 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Configuration Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter
Sampling Reference Selection SwitchSW3 is an edge-mounted, three-position toggle switch that controls the source of the sampling reference signal. This switch allows the sampling reference source to be switched between Internal, External or Auto mode. The internal sampling rate can be switched between 44.1 kHz and 48 kHz (see Figure 2-4).
Placing SW3 in the Internal mode position forces the ADC-6880 to use one of the internal crystal oscillators as a sampling reference. Depending on the setting of the sampling frequency selection switch (SW2), the ADC-6880 will sample at 48 kHz or 44.1 kHz, and will not be locked to any external sources. This mode is referred to as internal sampling or free run mode.
The auto setting allows the ADC-6880 to look for, and lock to, an external reference signal present on the external reference input. If no signal is present, or if the signal becomes unusable, the ADC-6880 will automatically switch to internal Reference mode. When the external reference signal is present and usable, the ADC-6880 will automatically switch back to external Sampling mode and will be locked to the external reference signal.
The external setting forces the ADC-6880 to lock to the external reference only. If there is no external reference present, or if it becomes unusable, the ADC-6880 will stop sampling audio data until the external reference is restored.
The sampling reference selection switch can be changed during operation of the ADC-6880. The unit does not have to be powered down to change this switch setting.
Sampling Frequency Selection SwitchThe sampling frequency selection switch determines which internal sampling reference the ADC-6880 will use when it is in Internal mode. When in the 48 kHz position, the sampling rate will be 48 kHz.
When in the 44.1 kHz position, the sampling rate will be 44.1 kHz. See Figure 2-6.
When the ADC-6880 is locked to an external reference, this switch will have no effect.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 23
Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter Configuration
Reset ButtonThe SW1 momentary push button located at the front edge of the ADC-6880 initiates a reset and an internal calibration of the A-to-D converter input circuitry (see “LED Indicators”, on page 25). The internal calibration is also performed each time power is applied to the ADC-6880. The SW1 button is a momentary push button that, when pressed and released, initiates the Reset mode of the A-to-D converter IC. It also mutes the digital data at the output of the ADC-6880. During this reset time (approximately 1 second), the analog audio input signal is disconnected, and the inputs are shorted to ground. This is accomplished via relays RL1 and RL2. Inputs are not shorted to ground.
The reset procedure removes any DC offsets present on the ADC-6880 input circuit and any DC offset in the A-to-D converter IC’s internal input stage.
Figure 2-5. Location of Reset (Calibration) Button
SW3
SW2
INTAUTOEXT
48KHz
44.1KHz
PWR48KHz
44.1KHz
REF ERREXT REF
SW1CAL 1
J1 1
6dB
uJ1
2 16
dBu
J2 1
8dB
uJ1
3 18
dBu
J3 2
0dB
uJ1
4 20
dBu
J15
22dB
u
J5 2
4dB
uJ1
6 24
dBu
J6 2
6dB
uJ1
7 26
dBu
J7 2
8dB
uJ1
8 28
dBu
J8 3
0dB
uJ1
9 30
dBu
J10 J9
AC
DC
J21 J20J21 ADC-6880
SER.NO.SER.NO.
J4 2
2dB
u
R15
R21
R113R125
R15
AC
DC
AC
DC
AC
DC
SW1CAL
24 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
LED Indicators Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter
LED IndicatorsLED indicators show power on, sampling rate, lock to an external sampling reference, and external sampling reference source errors.
Figure 2-6. Card-Edge View
Power LEDThe green power LED indicates that voltage is present across the +V and -V inputs to the ADC-6880. It does not guarantee that the input power is within the proper ± 6.5 to ± 8.0 V input voltage range. It also does not indicate that each of the voltage regulators is working properly.
R15R21
SW3
SW2
AUTOINT
EXT
48 kHz
44.1 kHz
Gain AdjustRight Channel
Green LED
Red LEDYellow LEDGreen LEDGreen LED
PWR
REF ERREXT REF44.1 kHz
48 kHz
Gain AdjustLeft Channel
R125
R113
SW1ResetButton
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 25
Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter LED Indicators
Sampling FrequencyThe green sampling Frequency LEDs indicate if the ADC-6880 is sampling at 48 or 44.1 kHz. If the ADC-6880 is set to External Sampling mode, and the external reference is not at 48 or 44.1 kHz, then the ADC-6880 will indicate that it is locked to an external reference (via the Ref. Pres. LED), but will not have either sampling frequency LED illuminated.
This condition is valid, but the external reference signal must be between 32 and 50 kHz for the A-to-D converter IC to be able to lock to it.
External Reference PresentThe yellow Ext Ref LED indicates that an external reference is present, the ADC-6880 is locked to it and using it as the sampling reference. If the ADC-6880 is set to internal sampling reference, then this LED will not be illuminated, even if an external reference is present.
External Reference ErrorThe red external reference Error LED is illuminated when an error on the external reference signal is detected.
26 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Specifications Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter
Specifications
Analog Audio Input
Reference Input
Digital Output
Item Specifications
Input Number 2 channels of balanced analog audio
Input Coupling AC- or DC- coupled, selectable
Input Impedance > 30 kΩ
Maximum Input Level
+30 dBu
Input Level Settings + 16 dBu to +30 dBu = 0 dBFS, in ± 2.0 dB increments, jumper selectable ± 2.0 dB variable adjustment range
Item Specifications
Reference Signal Type AES11 or AES3 audio reference signal
Input Type BNC, loop-through
Input Impedance >10 kΩ
Item Specifications
Number of Outputsin 6800 Series Frame
4 Outputs @ 75Ω, BNC
Number of Outputsin 7000 Series Frame
2 Outputs @ 110Ω, balanced plus 2
Output Voltage Level for balanced Outputs
3.5 to 5.0 Vp-p into 110Ω load
Output Voltage Level for Coax Outputs
1.0 Vp-p ± 10% into 75Ω 1.0 Vp-p ± 10% into 75Ω
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 27
Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter Specifications
Performance Specifications
Power Specifications
Item Specifications
Frequency Response ± 0.05 dB, 20 Hz to 20 kHz
Linearity ± 1.0 dB to 100 dBFS
Signal to Noise Ratio > 107 dB, 20 Hz to 20 kHz, A weighted> 102 dB, 20 Hz to 20 kHz, unweighted
THD + N < - 95 dB, 20 Hz to 20 kHz @ -2 dBFS
Item Specifications
Consumption 3.5 W at ± 6.8 VDC
Input Voltage ± 6.4 to ± 7.5 VDC
Current 160 mA on - 6.8 VDC rail350 mA on +6.8 VDC rail
28 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
ADC-6880 Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter
ADC-6880
Implementation ChartThe following table describes the functions of the ADC-6880:
Byte Bit Function RX TX Remarks
0 0 [0] Consumer use[1] Professional use
NN
NY
1 [0] Audio[1] Nonaudio
NN
YN
2- 4 (Emphasis) [000] Not indicated[100] No emphasis[110] 50/15 µs[111] CCITT J17
NNNN
NYNN
5 [0] Fs locked[1] Fs unlocked
YY
YY
6- 7 [00] Not indicated[01] 48 KHz[10] 44.1 KHz[11] 32 KHz
NYYY
NYYY
1 0- 3 (Channel mode)
[0000] Not indicated[0001] 2-channel[0010] Mono[0011] Primary/secondary[0100] Stereo[0101] to [1111]
NNNNNN
NNNNYN
4- 7 (User-bit mode)
[0000] Not indicated[0001] 192-bit[0010] AES 18[0011] User-defined[0100] to [1111]
NYNNN
NYNNN
2 0- 2 (Aux. bit usage)
[000] Not indicated[001] Audio data[010] Coord.[011] to [111]
NNNN
YNNN
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 29
Chapter 2: ADC-6880 Analog to AES/EBU Digital Audio Converter ADC-6880
3- 5 (Sample length)
[000] Not indicated[100] All other states
NNN
YNN
3 0- 7 Multichannel modes N N
4 0- 1 AES11 sync reference N N
5 0- 7 Unused N N
6- 9 ASCII source ID N N
10- 13 ASCII destination ID N N
14- 17 Local sample address N N
18- 21 Time-of-day address N N
22 0- 7 C data reliability N N
23 0- 7 CRCC N Y
Validity (V) bit N Y
User (U) bit N Y
Audio sampling frequencies (KHz) 32, 44.1, 48 (RX); 48 (TX)
Audio sample word length (bit) 16- 24 bit (RX); 20 bit (TX)
Byte Bit Function RX TX Remarks
30 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Chapter 3
ADM/ASM-680x Embedded AudioMonitoring Serial Distribution
Amplifier Modules
OverviewThe ADM and ASM series products address the need for low-cost monitoring of audio signals that are embedded within the serial video signal. The ASM provides analog audio outputs while the ADM has both analog and digital (AES) output capability. To view the number and types of outputs provided by each module when mounted in either the FR-680x or FR-7001 series mounting frames. See “Mounting Frames and Modules” on page 32.
Specifications and designs are subject to change without notice
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 31
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules Frames and Modules
Frames and Modules
• The ASM-6800 doubles as a serial distribution amplifier providing four reclocked serial outputs and an embedded audio monitor. It also provides two or four analog audio outputs derived from one or two embedded AES/EBU audio channels. The demultiplexed audio channels can be directly monitored via balanced, low-impedance analog audio outputs.
• The ASM-6804 provides four analog audio outputs when used in the FR-680x series mounting frames. The ADM-6800 is capable of providing both analog and digital audio output signals. It has four reclocked serial digital video outputs, two or zero analog audio outputs depending on the mounting frame, and two balanced digital audio output channels.
• The ADM-6804 provides two or four analog audio outputs and two balanced digital audio channel outputs, depending upon the mounting frame used. The ADM-6800C provides four reclocked serial digital video outputs and two single-ended AES channels each with two outputs. The ADM-6804BC, used only in the FR-680x series mounting frames, has two balanced AES output channels and two single-ended AES channels each with two outputs.
Module FrameBack Module/Adaptor
4 SDI Out
Analog Audio
Digital Audio (AES/EBU)
75Ω 110ΩASM-6800-68 FR-680X 6800B-AA Yes 1 Stereo No No
ASM-6800-70 FR-700X ASM-6800-M Yes 2 Stereo No No
ASM-6804-68 FR-680X 6800AA No 2 Stereo No No
ADM-6800-68 FR-680X 6800B-AD Yes None No 2 Stereo
ADM-6800-70 FR-700X ADM-6800-M Yes 1 Stereo No 2 Stereo
ADM-6800-C FR-680X N/A Yes None 2x (2 Stereo) No
ADM-6800-C-70 FR-700X ADM-6800C-M Yes None 2x (2 Stereo) No
ADM-6804-68 FR-680X 6800AD No 1 Stereo No 2 Stereo
ADM-6804-70 FR-700X ADM-6804-M No 2 Stereo No 2 Stereo
ADM-6804-BC-68 FR-680X 6804BC-AA No 1 Stereo 2x (2 Stereo) No
ADM-6804-BC-70 FR-700X ADM-6804BC-M No 2 Stereo 2x (2 Stereo) No
32 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Frames and Modules Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules
• The ADM-6804BBC, used only in FR-7001 frames, has two balanced AES output channels, two single-ended AES channels each with two outputs and two analog audio outputs. The ADM-6804BC (-70 and -68) has two single-ended AES channels each with two outputs and two or four analog audio outputs depending on the mounting frame.
All modules accept composite (143Mb/s) or component (270Mb/s, 525 or 625 line) video with audio multiplexed into the ancillary data area according to SMPTE 272M. The operating mode (incoming serial video data rate) is set by a jumper setting (J2). See Figure 3-6 ‘‘ADM/ASM-680X PCB Jumper and Switch Locations’’ on page 46 for more information.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 33
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules Frames and Modules
Serial Video Input
Serial Video Outputs (ASM-6800 only)
Item Specifications
Standards SMPTE: 259M-A; 143 Mb/s, 525 (NTSC)259M-C; 270 Mb/s, 525/625 (NTSC/PAL) component 272M-AB audio embedding
Connector BNC per IEC 169-8
Impedance 75Ω
Return Loss 18 dB to clock frequency
Signal Level 800 mV ±10%
Common Mode Rejection
30 Vp-p, up to 60 Hz
Equalization Automatic up to:21 dB for 143 Mb/s23 dB for 270 Mb/s
Item Specifications
Number of Outputs 4
Standards SMPTE:259M-A; 143 Mb/s, (525 NTSC)272M-AB audio embedding259M-C, 270 Mb/s, 525/625 component
Connector BNC per IEC 169-8
Impedance 75Ω
Return Loss 18 dB to clock frequency
Signal Level 800 mV ±10%
DC Offset 0 V ±0.5 V
Rise and Fall Time 400-700 pS (20 to 80% amplitude)
Overshoot 10% of amplitude (all outputs terminated)
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Frames and Modules Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules
Analog Audio Outputs
Item Specifications
Number of Outputs Up to 2 in 6800 series framesUp to 4 in 7000 series frames
Connector Type Removable barrier strip
Max. Output Level 24 dB @ full scale (balanced)- intended for high Z loads
Peak Output Adjustable from 6 to 24 dBu
Impedance 66 Ω balanced
THD+N 67 dB @ 1 kHz 0 dBFS, typical
Signal to Noise > 90 dB (50-20kHz)E
Inter-channel Crosstalk
> 90 dB (50-20kHz)
Frequency Response(@ full scale output)
• 50 Hz - 10 kHz: 0 ±0.15 dB
• 10 kHz - 20 kHz: 0 -0.3 dB
Power Requirement ASM-68xx
Positive rail: 4.3 WNegative rail: 0.70 WTotal: 5.0 W
Power Requirement ADM-68xx
Positive rail: 4.5 WNegative rail: 2.9 WTotal: 7.4 W
Single-ended Digital Audio Outputs Number of outputs
Number of outputs:2 outputs of both AES Ch1 and AES Ch2
Standards SMPTE 276M-1995 and ANSI S4.40-1992
Impedance 75Ω
Level 1.0 Vpp (±50 mV)
DC Offset 0.0 V (±50 mV)
Rise/fall (10%-90%)33-42 ns
Capable of driving the data over 350 meters of coax
Short Circuit Tolerance
Output still maintains compliance with SMPTE 276M specifications with 1 short per output channel
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 35
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules Frames and Modules
Balanced Audio Outputs
Figure 3-1. ADM Series Modules
Item Specifications
Number of Outputs 1 output at 1 or 2 AES channels
Standards AES 3-1992/ANSI 54.40-1992
Impedance 110Ω
1 2 3 4
VID_PRESAUD_PRESAUD_ERRNO_LOCK
MAINSWAP
MONITOR/REMOTE
SWAP
DEMUX DACS
AUDIOGROUPSELECT
AES ENCODER DRIVERS
SERIALVIDEO
AESOUTPUTS
ANALOGOUTPUTS
1A
1B
2A
2B
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Frames and Modules Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules
Figure 3-2. ASM Series Modules
Module Edge Controls and IndicatorsSMPTE 272M stipulates that embedded audio must be packaged into groups, and that each group may be comprised of a maximum of two digital audio channels in the AES format. In turn, each AES channel is composed of two monaural audio channels. Thus, one audio group may contain up to four monaural audio channels. For purposes of this manual, the main AES channels are designated as 1 and 2 and the sub-channels as A and B. Therefore, an audio group can be thought of as containing channels 1A, 1B, 2A, and 2B.
1 2 3 4
VID_PRESAUD_PRESAUD_ERRNO_LOCK
MAINSWAP
MONITOR/REMOTE
SWAP
DEMUX DACS
AUDIOGROUPSELECT
SERIALVIDEO
ANALOGOUTPUTS
1A
1B
2A
2B
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 37
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules Frames and Modules
Channel Swap ControlTwo types of swap control are provided:
• A main swap which routes particular de-embedded audio channels to specific outputs.
• A monitor swap which is used to swap only the analog outputs for monitoring purposes. This swap does not affect the AES digital output routing.
The ASM series modules provide the same module edge-control features as the ADM series, but the ASM provides only analog outputs, making the main and monitor swaps redundant. The user can use either swap to perform the appropriate routing to outputs.
The intention of main swap control is to allow the user to appropriately set the routing of particular audio channels to the specific output connectors. The main swap control affects both analog and digital outputs. SW1 enables a swap between channel pairs 1 and 2. SW2 enables a swap between the A and B channels within each channel pair. This is functionally illustrated inFigure 3-1 ‘‘ADM Series Modules’’ on page 36 and Figure 3-2 ‘‘ASM Series Modules’’ on page 37, and is summarized in the table below:
Main Swap DIP SW1 DIP SW2
No Swaps Down Down
Swap 1 with 2 Up Down
Swap A with B Down Up
Swap 1 with 2, Swap A with b Up Up
Main swap affects both AES and analog audio outputs.
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Frames and Modules Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules
Monitor SwapThe monitor swap control is controlled via convenient toggle switches at the front of the module. As shown in the block diagram, monitor swap only affects the analog output in the ADM series. This allows the user to monitor the analog outputs on the second channel while not affecting the AES outputs.
This is functionally illustrated in the table below:
Remote control of the swap feature is supported when the module is installed in an FR-7001 frame. External contact closures are provided for this feature. This feature is enabled by appropriately setting the Swap Control mode Jumper, J3. See Figure ‘‘Jumper Configurations’’ on page 44 and Figure 3-6 ‘‘ADM/ASM-680X PCB Jumper and Switch Locations’’ on page 46.
Analog Output LevelsPeak analog audio levels are user-adjustable and accessible pots are provided at the front of the modules for calibration purposes. Outputs are factory-set to the following levels:
• European Countries: 18 dBu corresponds to 0 dBFS input (full-scale digital)
• Other: 24 dBu corresponds to 0 dBFS input (full-scale digital)
Main Swap DIP SW2 DIP SW3
Normal Down Down
Swap 1 with 2 Up Down
Swap A with B Down Up
Swap 1 with 2, Swap A with B Up Up
Monitor swap affects the analog audio outputs only.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 39
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules Frames and Modules
Audio Group SelectionThe SMPTE 272M standard stipulates that embedded audio is packaged into groups. Serial video at 143Mb/s can only support one audio group, while serial video at 270 Mb/s can support up to four audio groups. (See the table below for the DIP switch settings.)
Module Edge Indicator DescriptionsThe ASM/ADM series modules have the following module edge indicators.
Audio Group DIP SW3 DIP SW4
Group 1 Down Down
Group 2 Up Up
Group 3 Down Down
Group 4 Up Up
For 143 Mb/s serial video applications, Group 1 must be selected.
LED Indicator Function
VID_PRES Indicates the presence of a valid video present or input.
AUD_PRES Indicates the presence of a selected embedded audio group (as specified by DIP switches 3 and 4).
AUD_ERR Indicates an OR function of checksum error, parity error, and data block number error.
UNLOCKED Indicates that the audio clock PLL is not locked to the input video signal; this indicator will also light up in the absence of a valid video input.
40 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Modules and Adaptors Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules
Modules and Adaptors
ASM-6800 ModuleWhen the ASM-6800 module is installed into an FR-7001 frame, the ASM-6800-M back module must be installed onto the rear panel:
Figure 3-3. ASM-6800 Module
ASM-6800-M
ADM-6800-M
CH2
AES
CH1
CH1
A B
1 2
A B
A B
SERIALOUTPUTS
SERIALOUTPUTS
INPUT
INPUT
REMOTE
REMOTE
A/B
A/B
1/2
1/2
1
1
2
2
3
3
4
4
ANALOG
ADM-6804BC-MCH2
CH1
A B
A B
ANALOG OUTPUTS
UNBALANCEDAES OUTPUTS
12
12REMOTE
SERIALINPUT
A/B 1/2
ADM-6804-M
ADM-6800C-M
CH2
CH1
A B
A B
INPUT
REMOTEA/B 1/2
ANALOG OUTPUTS
AESOUTPUTS1 2
UNBALANCEDAES OUTPUTS
SERIALOUTPUTS
SERIALINPUT
1 2 4 2
1 2 3 1
ADM-6804-M
ADM-6800C-M
CH2
CH1
A B
A B
INPUT
REMOTEA/B 1/2
ANALOG OUTPUTS
AESOUTPUTS1 2
UNBALANCEDAES OUTPUTS
SERIALOUTPUTS
SERIALINPUT
1 2 4 2
1 2 3 1
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 41
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules Modules and Adaptors
ADM/ASM ModuleWhen an ADM/ASM module is installed into an FR-680x series frame, a corresponding overlay is placed on the rear panel:
Figure 3-4. ADM/ASM Module
ASM-6800SERIALINPUT
SERIAL OUTPUT
ANALOG AUDIOOUTPUT
12
34
1B+ 1B-
1A+ 1A-
ADM-6800SERIALINPUT
SERIAL OUTPUT
AESOUTPUTS
12
34
2+ 2-
1+ 1-
ASM-6804SERIALINPUT
1B+ 1B-
1A+ 1A-
2B+ 2B-
2A+ 2A-
ANALOG AUDIOOUTPUT
ADM-6804SERIALINPUT
AESOUTPUTS
1B+ 1B-
1A+ 1A-
2+ 2-
1+ 1-ANALOG AUDIO
OUTPUT
SERIALINPUT
SERIALINPUT
BALANCEDAES OUTPUTS
SERIALOUTPUTS
UNBALANCEDAES OUTPUTS
ANALOG AUDIOOUTPUTS
1B+ 1B-
1A+ 1A-
ASM-6804-BC
ADM-6804-C
42 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Modules and Adaptors Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules
Audio AdaptersThe 6800AA, 6800AD, 6800B-AA, 6800B-AD, and 6804BC-AA are audio adapters that can be placed on top of the overlay and plugged into the BNCs of the FR-680x series frame for different output formats.
Figure 3-5. Audio Adapters
6800-AA
A(LEFT)
A(LEFT)
B(RIGHT)
B(RIGHT)
CHANNEL 1 CHANNEL 2
6800-AD
A(LEFT)
1B(RIGHT)
2
ANALOGOUTPUTS
AESOUTPUTS
6800B-AA
A B
ANALOGOUTPUTS
6804BC-AA
A B
ANALOGOUTPUTS
6800BC-AD
1 2
AESOUTPUTS
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 43
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules Jumper Configurations
Jumper ConfigurationsAll jumpers are factory preset such that the module conforms to the specific type of operation (i.e. model number and associated mounting frame) specified.
Frontof Module
Connectorend of Module
J22J12J21J11
J14J24J13J23
J34J33J32J31
AN/DIG AN/DIG AN/DIG
Jumper Positions within a Jumper Block (component side, top view)
TypeMountingFrame
Required Back Box and Jumper Settings
Jumper block (top view)Front Rear
ADM-6800-68 FR-680X 6800B-AD Rear connector/adapter required, J31, J32, J33, J34 on “DIG” side
ADM-6800-70 FR-7001 ADM6800-M Rear connector/adapter required, J11, J12, J13, J14 on “DIG” sideJ31, J32, J33, J34 on “DIG” side
ADM-6800-C FR-680X No rear connector/adapter requiredJ31, J32, J33, J34 on “DIG” side
ADM-6800-C-70 FR-7001 ADM-6800-M Rear connector/adapter required,J31, J32, J33, J34 on “DIG”side
ADM-6804-68 FR-680X 6800 AD Rear connector/adapter required,J21, J22, J23, J24 on “DIG” sideJ31, J32, J33, J34 on “AN” side
ADM-6804-70 FR-7001 ADM 6804-M Rear connector/adapter required,J11, J12, J13, J14 on “AN” sideJ21, J22, J23, J24 on “DIG” sideJ31, J32, J33, J34 on “AN” side
ADM-6804-BC-68 FR-680X ADM-6804BC-M Rear connector/adapter required,J31, J32, J33, J34 on “AN” side31, J32, J33, J34 on “AN” side
ADM-6804-BC-70 FR-7001 ADM6800-M Rear connector/adapter required,J11, J12, J13, J14 on “AN” sideJ31, J32, J33, J34 on “AN”side
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Jumper Configurations Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules
ASM-6800-68 FR-680X 6800B-AA Rear connector/adapter required,J31, J32, J33, J34 on “DIG” side
ASM-6800-70 FR-7001 ASM-6800-M Rear connector/adapter required,J11, J12, J13, J14 on ”AN” sideJ31, J32, J33, J34 on “AN” side
ASM-6804 FR-7001 6800AA Rear connector/adapter required,J21, J22, J23, J24 on “AN” sideJ31, J32, J33, J34 on “AN” side
Jumper Positions within a Jumper Block (component side, top view)
TypeMountingFrame
Required Back Box and Jumper Settings
Jumper block (top view)Front Rear
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 45
Chapter 3: ADM/ASM-680x Embedded Audio Monitoring Serial Distribution Amplifier Modules Jumper Configurations
Figure 3-6. ADM/ASM-680X PCB Jumper and Switch Locations
46 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Chapter 4
DAC-6801 Digital to AnalogComponent Converter
OverviewThe DAC-6801 Digital to Analog Component Converter addresses the requirements of broadcasters and video professionals for component digital to analog 4:2:2 conversion. The DAC-6801 supports the following standards in 625 and 525 line standards, with and without setup as appropriate:
• SMPTE/EBU GBR and YPbPr
• NTSC-related GBR
• MII-related GBR and YPbPr
• BETACAM YPbPr
Specifications and designs are subject to change without notice.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 47
Chapter 4: DAC-6801 Digital to Analog Component Converter Features
FeaturesThe DAC-6801 has the following features:
• 10-bit processing with 14-bit interpolation
• Component analog output with color space conversion, GBR or YPbPr
• Separate sync output
• Dual outputs
• Serial digital SMPTE 259M-C (270 Mb/s) input
• Selectable sync on GBR
• 4x oversampling Y, 8x oversampling PbPr
• Variable vertical blanking up to line 20 for 525 and line 22 for 625
• Low power - 6.5 W
• Color-bar generator
See Figure 4-7 for a functional block diagram of the DAC-6801.
Figure 4-7. DAC-6801 Functional Block Diagram
Program In
Sync out (.3V)
Y/G Out
B/Pb Out
Y/Pr Out
Auto EQ
Flags
Interpolators
1:2
1:2
Program Locking & ControlSync Insertion/blankingColor Bar Generator
Reclock& SP
EDHDetect
EDHDetect
ColorMatrix
48 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Installation Chapter 4: DAC-6801 Digital to Analog Component Converter
InstallationThe DAC-6801 back module connectors are as follows, with two outputs per signal. See Figure 4-8 below.
Figure 4-8. DAC-6801 Back Module Connectors
Front Edge LayoutThe DAC-6801 front-edge layout is shown in the following figure. The two switches on the front are used for setup and control. Hex SW1 has 16 positions, Hex 0 to F. SW2 is a toggle type switch. Press up or down to toggle. See Figure 4-9 on page 50.
Signal Description
Serial In SMPTE 259-C Serial Inputs
G/Y Green or Y signal
B/B-Y Blue or B-Y signal
R/R-Y Red or R-Y signal
Sync Out External color black
SYNCOUT
R/R-Y B/B-Y G/YSERIAL
IN
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 49
Chapter 4: DAC-6801 Digital to Analog Component Converter Installation
Figure 4-9. Front Edge Switches/LEDs
LEDsDAC-6801 LEDs illuminate as follows:
ACTIVITY
525AUTO625
ERROR LOCK 1
GBRY, Pr, Pb
SMPTEBETAM-IINTSC
DETENT
LOCK 1LOCK CBPhase
CRPhase
J1 J1 U14System Firmware
HexSw1
ToggleSw2
LEDs Function
525 Indicates the module is running in 525 line mode.
AUTO Indicates the module is running in AUTO mode: the line mode is automatically changed as per the input signal.
625 Indicates the module is running in 625 line mode.
LOCK Indicates the module is locked to the input serial video.
ERROR Indicates the module has detected EDH errors in the input serial video.
SMPTE, BETA, M-11, NTSC
Indicates the current analog level standard, generated at output.
GBR and Y, Pr, Pb
Indicates the current color matrix utilized.
SETUP Indicates setup (pedestal) is added to output video.
SYNC G Indicates sync inserted on G output in GBR mode.
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Installation Chapter 4: DAC-6801 Digital to Analog Component Converter
Figure 4-10. DAC-6801 Board Diagram
SYNC B+R Indicates sync inserted on B+R outputs in GBR mode.
DETENT Indicates gain or offset has been modified (from factory settings) with SW1 in Position 0. This LED illuminates as SW1 is rotated (in positions 2 through 7) indicating which parameter has been adjusted for gain and offset. The Detent LED blinks when an invalid standard has been selected; for example, 625 NTSC.
ACTIVITY Indicates calibration activity; used only during alignment.
LEDs Function
ConfigError
J8: HI-Z / 75
J6: HI-Z / 75
J7: HI-Z / 75
J5: HI-Z / 75
U4System Firmware
SyncPhase
CBPhase
CRPhase
CBGain
CRGain
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 51
Chapter 4: DAC-6801 Digital to Analog Component Converter Front Edge Control
Front Edge ControlThe DAC-6801 is operated through the front edge controls using Hex SW1 and Toggle SW2. SW1 selects the parameter to be adjusted and SW2 performs the adjustment/selection.
The following table illustrates the DAC-6801 front edge controls:
The Active mode selection is indicated by the flashing LED.
SW1 Position
Name ofFunction Purpose SW2
PositionSW2Actions
0 Operation Normal operation does not require any operator input. There is no action for SW2.
UP DN
No ActionNo Action
1 ModeSelect
Provides the Standard Selection or mode of operation.Perform the following steps to make a selection:
1. Set HEX SW1 to position 1.
2. Toggle SW2 Up to move through all of the Operating modes. The corresponding LED illuminates as the selection is toggled.
3. Toggle SW2 Down to change the selection inside the mode. The corresponding LED illuminates as the selection is toggled.
UP DN
Change ModeChange Selection
2 GBRYPrPb/Gain
Allows the operator to change the overall gain on all three channels at the same time, to compensate for variable output gains.
UP DN
Increase GainDecrease Gain
3 Pb/B Gain Allows the operator to change the gain on the Pb Channel independent of the other channels.
UP DN
Increase GainDecrease Gain
4 Pr/R Gain Allows the operator to change the gain on the Pr Channel independent of the other channels.
UP DN
Increase GainDecrease Gain
5 Y/G Offset This control allows the operator to change the DC offset on the Y channel independent of the other channels.
UP DN
Increase OffsetDecrease Offset
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Front Edge Control Chapter 4: DAC-6801 Digital to Analog Component Converter
6 Pb/B Offset This control allows the operator to change the DC offset on the Pb channel independent of the other channels
UP DN
Increase OffsetDecrease Offset
7 Pr/R Offset Allows the operator to change the DC offset on the Pr channel independently from the other channels.
UP DN
Increase OffsetDecrease Offset
8 H Delay This control allows for horizontal timing adjustments (delays) between the input serial video and analog output. The adjustment is made in 37 ns steps (increments or decrements) based on a 27 MHz clock frequency. The range is from a minimum of 5 µs to one line length delay
UP DN
Increase DelayDecrease Delay
9 Not Used Not Used Not Used
A Not Used Not Used Not Used
B Not Used Not Used Not Used
C Internal Color Bars
Enables the Color Bars signal. The bars are 100% luma and 75% chroma: 100/0/75/0. The specified level for each standard refers to 100% color bar levels: 100/0/100/0, 100/7/100/0, or 100/7/.5/100/7.5 for GBR. (See "Color Bar Levels" on page 55)
UP DN
Enabled Disabled
D VerticalBlanking
Allows the operator to vary the blanking width up to line 20 in 525 and line 625 standard.
UPDN
Increase BlankingDecrease Blanking
E Factory Recall
Allows the operator to recall the factory auto calibrated levels for the given input. This recall resets all offsets to zero and restores the factory Luma and Horizontal phases.
UPDN
RecallRecall
F Not Used Not Used
SW1 Position
Name ofFunction Purpose SW2
PositionSW2Actions
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Chapter 4: DAC-6801 Digital to Analog Component Converter Front Edge Control
SwitchesEach of the switches, functions, and actions, is discussed in the following table:
Mode Selections Purpose
Standard 525AUTO625
Allows the operator to select the input line input. The auto position will automatically determine the input line standard and set the system accordingly.
Format SMPTE BETA MII or NTSC
Allows the user to select the input format.
Matrix GBR or YPbPr Allows the user to select the input matrix.
Setup On/Off • An On/Off control based on the input standard.
• On/Off (enabled), the setup is added to the analog signal in the digital domain.
Sync Source C/YBLKTTL
Sync source selects are as follows:
• Internal from Y/G channel
• External color black
• External TTL level
Data Width 10 BIT8 BIT
Data width is selectable between 10-bit and 8-bit. In 8-bit mode the sampled 10-bit data is rounded to 8 bits.
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Front Edge Control Chapter 4: DAC-6801 Digital to Analog Component Converter
Color Bar Levels
525, YPbPr, with Setup Y PB Pr
SMPTE 700 mV 700 mV 700 mV
BETA 714 mV 1008 mV 1008 mV
MII 700 mV 648 mV 648 mV
NTSC Invalid
SMPTE Invalid
BETA 714 mVp-p660 mV, 54 mV setup
934 mV 934 mV
MII 700 mVp-p648 mV, 52 mV setup
648 mV 648 mV
NTSC Invalid
525, GBR, with No Setup G B R
SMPTE 700 mV 700 mV 700 mV
BETA Invalid
MII 700 mV 700 mV 700 mV
NTSC 714 mV 714 mV 714 mV
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 55
Chapter 4: DAC-6801 Digital to Analog Component Converter Front Edge Control
525, GBR, with Setup G B R
SMPTE Invalid
BETA Invalid
MII-related 700 mVp-p648 mV, 52 mV setup
700 mVp-p648 mV, 52 mV setup
700 mVp-p648 mV, 52 mV setup
NTSC-related 714 mVp-p660 mV, 54 mV setup
714 mVp-p660 mV, 54 mV setup
714 mVp-p660 mV, 54 mV setup
625, YPbPr Y PB Pr
EBU 700 mV 700 mV 700 mV
BETA non-EBU 700 mV 934 mV 934 mV
MII-related Invalid
NTSC-related Invalid
625, GBR G B R
EBU 700 mV 700 mV 700 mV
BETA Invalid Invalid Invalid
MII-related Invalid Invalid Invalid
NTSC-related Invalid Invalid Invalid
525, YPbPr, with Setup Y PB Pr
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Analog Adjustments Chapter 4: DAC-6801 Digital to Analog Component Converter
Analog AdjustmentsPb Phase and Pr Phase allow fine phasing of the Pb and Pr channels to the Y channel within ± 5 ns. They are set in the factory, and do not need adjusting.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 57
Chapter 4: DAC-6801 Digital to Analog Component Converter Specifications
Specifications
Serial Video Input
Component Outputs
Item Specifications
Standards SMPTE 259M-C; 270 Mb/s, 525/625
Connector BNC per IEC 169-8
Impedance 75Ω
Return Loss > 18 dB to clock frequency
Common Mode Rejection
30 Vp-p, up to 60 Hz
Equalization Automatic up to 22 dB
Item Specifications
Number of Outputs 6 BNCs: 2 sets of G/Y, B/B-Y, R/R-Y
Output Standards SMPTE, Betacam, MII, NTSC (Y, B-Y, R-Y, or GBR where applicable)
Impedance 75Ω
Return Loss > 36 dB to 5 MHz on all outputs
Quantizing 10 bits
Gain Adjustable Range
> ± 30%
DC Adjustable Offset ± 5 mV
Frequency Response < ± 0.1 dB to 5 MHz
S/N Ratio > 70 dB
Adjustable Delay ∼5 µs to 1 line
Adjustable Vertical Blanking
10 – 20 lines for NTSC6 – 22 lines for PAL
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Specifications Chapter 4: DAC-6801 Digital to Analog Component Converter
Sync Outputs
Power Consumption
Item Specifications
Number of Outputs 2
Output Level 0.3 Vp-p
Item Specifications
6.5 W + 6.5 1A-6.5 35 mA
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 59
Chapter 4: DAC-6801 Digital to Analog Component Converter Specifications
60 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Chapter 5
DAC-6880 AES/EBU Digital Audio to Analog Audio Converter
OverviewThe DAC-6880 Digital Audio to Analog Audio Converter converts a standard 20-bit AES3-1992 digital signal to its analog equivalent. The unit is available with a 110Ω balanced input or 75Ω coaxial input. Accepting data at 32 kHz, 44.1 kHz, and 48 kHz, the DAC-6880 is a complete digital audio to stereo analog audio converter. The module receives and decodes data according to the AES3-1992 standard and will identify a loss of input or clock with a card front error LED. The D/A converter utilizes a 128X oversampled delta-sigma modulator and filtering to provide high quality interpretation of 20 bit data.
Converted data is distributed to dual analog stereo outputs (two left, two right). Full-scale analog output level is jumper-selectable for either +18 dBu or +24 dBu with ± 6 dB card front adjustment.
Outputs are subject to Leitch’s high broadcast quality standards. The module is available for use in all 6800 and 7000 series frames, providing an economical standalone unit, as well as a system unit.
Specifications and designs are subject to change without notice.
The maximum analog output level is +28 dBu.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 61
Chapter 5: DAC-6880 AES/EBU Digital Audio to Analog Audio Converter Overview
Figure 5-1. AES-6880 Functional Block Diagram
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Operation Chapter 5: DAC-6880 AES/EBU Digital Audio to Analog Audio Converter
Operation
Input ImpedanceThe DAC-6880 accepts either 110Ω balanced or 75Ω unbalanced digital audio signals. The input impedance is set at the factory by the rear module/adapter ordered and the front card-edge jumpers:
Terminated or Looping InputsThe unit is factory set for looping inputs. To adjust the input impedance to accommodate terminated inputs (non-looping) or looping inputs, use the following instructions:
Full-Scale Analog Output LevelThe full-scale analog output level can be set to +18 dBu or +24 dBu through mid-card jumpers. To set the output level to +18 dBu, set jumpers J3 and J4 to the frontmost position. To set the output level to +24 dBu, set jumpers J3 and J4 to the rear position.
Figure 5-2. DAC-6880 Full-Scale Analog Output Level
• To set to 75Ω: Set jumpers J5 and J6 to front most position
• To set to 110Ω: Set jumpers J5 and J6 to the rear position
• Terminated Inputs: Set jumpers J7 and J8 to the rear position
• Looping Inputs: Set jumpers J7 and J8 to frontmost position
DAC-6880
DC-DCCONVERTER
POWER ON
ERROR
J6J5
J7J8
J3
J418 dBu
24 dBu
18 dBu
24 dBu
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 63
Chapter 5: DAC-6880 AES/EBU Digital Audio to Analog Audio Converter Operation
Output Level AdjustmentThe output level may be adjusted ± 6 dB, from the front of the unit, by adjusting the variable resistors R9 and R10.
Power and Error IndicatorsThe DAC-6880 indicates power on with the green Power On LED and input signal error with the red Error LED. Both LEDs are located on the front card edge.
Figure 5-3. Card-Edge View
The maximum analog output level is + 28 dBu.
Left
Right
Power On
Error (Red)
(Green)
J6J5
J7J8
R9R10
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Operation Chapter 5: DAC-6880 AES/EBU Digital Audio to Analog Audio Converter
Rear Module/Adapter ConnectionsWhen shipped, the modules are set to looping inputs. See “Terminated or Looping Inputs” on page 63.
Figure 5-4. Rear Module/Adapter Connections
Module Frame Input FormatNo. of Analog Outputs
DAC-6880-70B 7001 series 110Ω Balanced AES3-1902
2 Dual(2 left 2 right)
DAC-6880-70C 7001 series 75Ω Coaxial SMPT 276M
2 Dual(2 left 2 right)
DAC-6880-68C 6800 series 75Ω Coaxial SMPT 276M
2 Dual(2 left 2 right)
ANALOG AUDIO OUTPUTS
Left Right RightLeftOutput 1 Output 2
AES Input
ANALOG AUDIO OUTPUTS
Left Right RightLeftOutput 1 Output 2
Looping Input
3 17 5
4 28 6 AESINPUT
OUTPUTS
Plug InAudio AdapterModule
Rear of6800 SeriesFrame
ANALOG AUDIO OUTPUTS
Left Right RightLeftOutput 1 Output 2
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 65
Chapter 5: DAC-6880 AES/EBU Digital Audio to Analog Audio Converter Specifications
Specifications
Input
Output
Item Specifications
Input Number 1 (20-bit, two-channel AES signal)
Input Coupling Transformer Coupling
Input Impedance/Type
110Ω balanced or 75Ω coaxial
Maximum Input Signal Level
7.0 Vp-p for 110Ω balanced signal1.1 Vp-p for 75Ω coaxial signal
Minimum Input Signal Level
2.0 Vp-p for 110Ω balanced signal100 mVp-p for 75Ω coaxial signal
Item Specifications
Output Number 2 (dual stereo, 2 left, 2 right)
Frequency Response ± 0.1 dB (20 - 20 kHz)
Linearity ± 1.0 dB to -100 dBFS
Signal to Noise Ratio > 100 dB (20 - 20 kHz)
THD+N < 0.004% (20 - 20 kHz @ 0 dBFS = 24 dBu, High Z load)
IMD < -90 dB (CCIF two-tone test @ 0 dBFS = 24 dBu, High Z load)
Full-Scale Analog Output Level Range
+ 12 dBu to + 28 dBu
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DAC-6880 Chapter 5: DAC-6880 AES/EBU Digital Audio to Analog Audio Converter
DAC-6880
Implementation ChartThe following table describes the functions of the DAC-6880:
Byte Bit Function RX TX Remarks
0 0 [0] Consumer use[1] Professional use
YY
NN
1 [0] Audio[1] Nonaudio
YN
NN
2 - 4 (emph.) [000] Not indicated[100] No emphasis[110] 50/15 ms[111] CCITT J17
NNNN
NNNN
5 [0] Fs locked[1] Fs unlocked
YY
NN
6 - 7 [00] Not indicated[01] 48 KHz[10] 44.1 KHz[11] 32 KHz
YYYY
NNNN
1 0 - 3 (Channel mode)
[0000] Not indicated[0001] Two channel[0010] Mono[0011] Primary/ Secondary [0100] Stereo[0101] to [1111]
YYYYYY
NNNNNN
4 - 7 (User bit mode)
[0000] Not indicated[0001] 192 bit[0010] AES 18[0011] User-defined[0100] to [1111]
YYYYY
NNNNN
2 0 - 2 (Aux. bit usage)
[000] Not indicated[001] Audio data[010] Coord.[011] to [111]
YYYY
NNNN
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 67
Chapter 5: DAC-6880 AES/EBU Digital Audio to Analog Audio Converter DAC-6880
3- 5 (Sample length)
[000] Not indicated[100] All other states
YYY
NNN
3 0 - 7 Multichannel modes N N
4 0 - 1 AES11 sync reference N N
5 0 - 7 Unused N N
6 - 9 ASCII source ID N N
10 - 13 ASCII destination ID N N
14 - 17 Local sample address N N
18 - 21 Time-of-day address N N
22 0 - 7 C data reliability N N
23 0 - 7 CRCC N N
Validity (V) bit Y N
User (U) bit N N
Audio Sampling Frequencies (KHz) 24-54 KHz (RX)
Audio Sample Word Length (bit) 16-20-bit (RX)
Byte Bit Function RX TX Remarks
68 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Chapter 6
DEC-6801/DES-6801Decoder with Frame Synchronizer
Module
OverviewThe DEC/DES-6801 Decoder with Frame Synchronizer is a compact and economical module which converts the composite NTSC, PAL-B, or PAL-M analog composite signals into component (4:2:2) serial video using a three-line adaptive comb filter. The unit provides analog video preprocessing and a wide range of digital adjustments.
Specifications and designs are subject to change without notice.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 69
Chapter 6: DEC-6801/DES-6801 Decoder with Frame Synchronizer Module Specifications
Specifications
Analog Video Input
Analog Video Processing
Digital Video Processing
Item Specifications
Standards NTSC, PAL-B, PAL-M
Level 1 Vp-p ±3 dB
Impedance 75Ω
Return Loss > 40 dB to 5.75 MHz
Common Mode Rejection
> 60 dB at 50/60 Hz
Common Mode Range
± 5 Vp-p
Item Specifications
Gain Range ± 3 dB
Hue Range (NTSC only)
± 180°
Item Specifications
Input 10-bit quantized video
Decoding Algorithm 3-line adaptive comb
Frequency Response ± 0.1 dB to 5.75 MHz
Differential Gain 1%
Differential Phase 1°
Signal to Noise 59 dB
Delay 1 H +2 µs (DEC-6801)
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Specifications Chapter 6: DEC-6801/DES-6801 Decoder with Frame Synchronizer Module
Serial Video Outputs
Phasing
Storage
Reference Input
Item Specifications
Number 4
Standard 259M-C; 270 Mb/s
Connector BNC per IEC 169-8
Impedance 75Ω
Return Loss > 18 dB
Signal Level 800 mV ± 0.5 V
Rise and Fall Times 400-700 ps (20 to 80% amplitude)
Overshoot < 10% of amplitude (all outputs terminated)
Jitter (DES-6801 Only)
< 500 ps
Item Specifications
Resolution < 0.25 ns
Range Infinite
Item Specifications
Number of Fields 2 (1 frame)
Data Path 10 bits
Item Specifications
Level Vp-p
Signal Type Analog composite NTSC/PAL-B/PAL-M
Connector BNC
Impedance 75 Ω
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 71
Chapter 6: DEC-6801/DES-6801 Decoder with Frame Synchronizer Module Specifications
Power Dissipation
Item Specifications
DEC-6801 Positive rail: 4.9 WNegative rail: 0.4 WTotal: 5.3 W
DES-6801 Positive rail: 6.9 WNegative rail: 0.5 WTotal: 7.4 W
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Installation Chapter 6: DEC-6801/DES-6801 Decoder with Frame Synchronizer Module
InstallationTo ensure stable and trouble-free service the DEC/DES-6801 has been carefully inspected, tested, and calibrated before shipping. Check the equipment for any visible damage which might have occurred during transit and to ensure that the modules have remained properly seated in the mounting frame.
The DEC/DES-6801 module is designed to operate in an ambient temperature range of 0° to +40°C. No special provisions for cooling are necessary, but care should be taken to prevent excessive heat rise in closed, unventilated equipment racks.
The DEC-6801 module can be accommodated in either an FR-6801 or FR-7001 1RU mounting frame, or a FR-680x 2RU mounting frame. It can also be installed in an FR-7000MB MIX BOX standalone frame. The DES-6801 module can only be accommodated in FR-6804 or FR-6804-1 2RU mounting frames. A post attached to the module prevents insertion into a 1RU frame and prevents other modules from being placed too near it.
Figure 6-1. DEC/DES-6801 Module and Overlay
Before connecting the DEC/DES-6801 module to primary power, check (and, if necessary, set) the input voltage selector switch on the rear panel to match the local line voltage.
DEC-6801-M
SERIALOUTPUTS
625GENLOCK
525VIDEOINPUT
DEC-6801DES-6801
VIDEO INPUT
GENLOCK 525GENLOCK 625
SERIAL OUTPUTS
1 2
3 4This module is used when the DEC-6801 module is installed into either an FR-7001 series or FR-7000MB MIX BOX frame.
This overlay is used when the DEC/DES-6801 module is installed into an FR-680x frame.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 73
Chapter 6: DEC-6801/DES-6801 Decoder with Frame Synchronizer Module Operations
OperationsThe following sections describes the controls and indicators located at the front edge of the desirable module.
ControlsThe Selector 16-position rotary switch selects control parameters. See “Bank B2,” on page 78.
• The Adjuster two-position toggle switch adjusts parameter values.
• The Service Push button allows you to locate the position of the particular module in the network when one or multiple modules are linked together over a 75Ω network (DigiNet) and connected to the Central Controller (PC or Leitch DigiNet panel).
• The Frequency Adjust switch sets the free-running clock rate.
LED Indicators• The Bank A/B LED indicates the selected Bank: Bank A is selected if
the Bank A/B LED is Off (factory default), and Bank B is selected if the Bank A/B LED is On.
• The 625 Auto 525 LEDs indicate the standard: The 525/625 LEDs indicate a detected standard if the Auto LED is On, and a forced line standard if the Auto LED is Off.
• The Unlocked LED indicates (when lit) that the module cannot lock onto the incoming composite signal or that the Incoming signal is not present.
• The Service LED lights up for a short time at power up but remains Off during normal operation. If the Service LED is blinking or continuously On, a hardware failure has been detected.
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Operations Chapter 6: DEC-6801/DES-6801 Decoder with Frame Synchronizer Module
Jumpers• The Input Termination jumper is used to terminate the input video.
• The Fs Clk jumper is used to enable the frame synchronization clock. It must be used when the DEC- 6801 module is equipped with the 6801FS, 6801FS-1, 6801FS-2 or 6804FS sub-module.
• The Dec Clk jumper is used when the DEC-6801 module is used as a decoder only.
• Frame ID is made possible by reading the silicon serial number if it is installed in the RJ11 at the back of the frame. The two Off/On jumpers are shipped in the Off position from the factory and must both be On to enable frame ID.
SwitchesSW4 and SW5 can be used to identify the frame ID if the silicon serial number is not installed. There are 256 possible numeric combinations provided by these switches.
Frame IDFrame ID is read by the microcontroller on power up in the following sequence:
1. The microcontroller first tries to read the frame ID from the silicon serial number DS2401 placed in the RJ11 at the back of the frame.
2. If the silicon serial number is not installed, the frame ID is read from SW4 and SW5, which are placed on the DEC/DES-6801 module and set appropriately by the user.
The user must use either the FS CLK or the DEC CLK jumper.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 75
Chapter 6: DEC-6801/DES-6801 Decoder with Frame Synchronizer Module Bank A1
Bank A1Bank A1 is active in both DEC-6801 and DES-6801 modules. The following table describes this bank.
SW1 Position Function SW2 Down SW2 Up
0 Bank Select *3Bank A Bank B
1 Standard Force *3Auto
2 Force Standard 625 525
3 525 Standard Select NTSC PAL-M
4 Input Video Select (presence of setup dependent)
Input Video without Setup *3Input Video with Setup
5 Video Level Decrease Increase
6 *4Black Level Decrease Increase
7 Hue
8 VITS *3Pass mode Delete
9 VITS Pass mode VITS are passed unprocessed on the Luma channel
*5VITS are passed through a simple decoder
A
B Black Level mode Auto *6Manual
C
D
E
F Factory Recall
Description*1 The Bank A/B LED is Off.
*2 The Bank A/B LED is On.
*3 Factory default setting.
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Bank A1 Chapter 6: DEC-6801/DES-6801 Decoder with Frame Synchronizer Module
*4 Black level adjustment is possible when “Black Level Mode” is set to the manual mode.
*5 This function is disabled when “Black Level Mode” is set to the manual mode.
*6 Controls are disabled for PAL-M standard.
Description
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 77
Chapter 6: DEC-6801/DES-6801 Decoder with Frame Synchronizer Module Bank B2
Bank B2Bank B2 is active only with the DES-6801 Module. The following table describes this bank.
SW1 Position Function SW2 Down SW2 Up
0 Bank Select *3Bank A *3Bank B
1 H Phase
2 V Phase
3 Freeze *3Off On
4 Freeze mode *3Field Frame
5 Field Freeze mode *3Field 1 Field 2
6 Hot Switch Disable *3Enable
7 Hot Switch mode Black *3Last Field
8 Forced Black *3Off On
A FS mode Delay *3Frame Sync
Description*1 The Bank A/B LED is Off.
*2 The Bank A/B LED is On.
*3 Factory Default Setting.
*4 Black level adjustment is possible when “Black Level Mode” is set to the manual mode.
*5 This function is disabled when “Black Level Mode” is set to the manual mode.
*6 Controls are disabled for PAL-M standard.
78 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Chapter 7
DEC-6804 Decoder andDES-6804 Decoder with Frame
Synchronizer
OverviewThe DEC-6804 and DES-6804 decoders are compact, high precision12-bit decoders that convert NTSC or PAL analog composite signals into superior quality component (4:2:2) digital video. These decoders use advanced Leitch Phase Quadrature Mixing (PQM™) technology for 2-D adaptive comb filtering, and are designed for high performance and optimal value. They are both able to process vertical blanking intervals (VBIs) and handle super-black levels.
The DES-6804 also adds frame synchronization features and TBC capabilities. It provides an audio sync lock with video delay and hot-switch outputs for an audio sync interface to accommodate future digital audio modules.
This document includes the following topics:
• Main features
• Signal flow
• Front and back modules
• Installation
• Operation
• Parameter groups
• Specifications
Specifications and designs may change without notice.
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual 79
Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer Features
FeaturesThe following list highlights the features of the DEC-6804 and the DRS-6804:
• Analog video processing at ±6 dB gain range
• ±7.5 IRE black level
• 360° hue adjustment allowing full-range user control
• Over-sampling analog-to-digital conversion with 12-bit resolution
• TBC capabilities, locking to VHS or bad microwave feeds (DES-6804 only)
• 2-D adaptive comb filtering utilizing the new Leitch PQM™ technology
• Automatic PAL/NTSC switching (based on input signal)
• Full VBI handling and processing (line by line)
• Test signal generation (75% color bar, FCC composite, black)
• Full compatibility with existing frames
The new Phase Quadrature Mixing (PQM™) technology provides the highest degree of video decoding quality while minimizing the level of residual subcarrier artifacts associated with previous comb filter designs.
The PQM™ decoding technology is based on a set of dynamic control signals that are derived from specific quadrature characteristics of the source video signal. These signals are filtered and subsequently used to modulate the summation of the original source video components, in a balanced mixer hierarchy that mirrors the control signal quadrature relationship.
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Signal Flow Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer
Signal FlowFigure 7-1 is a functional block diagram that describes the signal flow of the DEC-6804 and DES-6804 modules.
Figure 7-1. Functional Block Diagram of the DEC/DES-6804 Modules
FPGA Video Processing Unit
12-Bit A/DConverter
VideoPreprocessing
SyncSeparator
LineMemory
ClockGeneratorand PLL
CPUControl
UnitUser
Interface
Clockand PLLControl
SDIOutput
Clamp Control
Serializer
2-D CombFilter
ColorDemodulator
DataFormatter
ReferenceComposite
Video
I/ODelay
SDIOutput
Serializer
PrimaryComposite
Video
2I C BusGenlock
(DES-6804 Only)
Audio SyncInterface
(DES-6804 Only)
FrameSynchronizer
(DES-6804 Only)
FrameMemory
(DES-6804 Only)
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Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer Front and Back Modules
Front and Back Modules
Front ModuleFigure 7-2 illustrates the LEDs and controls on the DEC-6804 and DES-6804 front modules.
Figure 7-2. LEDs and Controls on the DEC/DES-6804 Front Module
SW1 MODE SELECT Rotary Switch
SW3 DOWN/UPToggle Switch
Extractor Handle Open
LED Indicators
In compatible 6800/7000 series 1RU frames, the front module is installed horizontally. The 2RU 6800 series frames (FR-6804 and FR-6804-1) require a vertical installation.
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Front and Back Modules Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer
Back Module and Adhesive Overlay
Back Module
If you install a DEC-6804 or DES-6804 decoder module in an FR-7001 frame, a back module is required (see Figure 7-3.) The I/O DELAY connector only functions on the DES-6804 module.
Figure 7-3. Back Module for DEC/DES-6804 Modules Installed in an FR-7001 Frame
Adhesive Overlay
The following frames do not require a back module:
• FR-6800 (1RU)
• FR-6801 (1RU)
• FR-6801-1 (1RU)
• FR-6802 (1RU)
• FR-6804 (2RU)
• FR-6804-1 (2RU)
To properly identify the integral connectors on the frame, attach the DEC/DES-6804 adhesive overlay to the back of the frame (see Figure 7-4 on page 84.) The I/O DELAY connector only functions on the DES-6804 module.
DES-6804
I/ODELAY VIDEO
INPUT
SERIALOUTPUTS
1
24
3G/L 625G/L 525
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Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer Front and Back Modules
Figure 7-4. Overlay of the DEC-6804 Decoder and the DES-6804 Decoder with Frame Synchronizer
Overlay for the FR-6800 series of frames.
DEC/DES-6804
GENLOCK 625
1 2
3 4
SERIAL OUTPUTS
GENLOCK 525
I/O DELAY
VIDEO INPUT
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Installation Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer
InstallationTo ensure stable and trouble-free service, the DEC-6804 and DES-6804 modules have been carefully inspected, tested, and calibrated before shipping. Check the equipment for any visible damage that may have occurred during transit.
The DEC-6804 and DES-6804 modules are designed to operate in an ambient temperature range of 0° to +40°C. No special provisions for cooling are necessary, but take care to prevent excessive heat in closed, unventilated equipment racks.
Jumper SettingsThe DES-6804 module includes two jumpers: J4 and P5. The DEC-6804 module includes only the J4 jumper.
Jumper J4 allows you to select either Termination On or Termination Off for video input.
Jumper P5 allows you to select either NTSC/PAL input Loop-Through or 75Ω Internal Termination as genlock input options. When you select Internal Termination, NTSC and PAL-B can be connected simultaneously.
Figure 7-5 illustrates the location of the J4 and P5 jumpers. The J4 jumper is shown in the Termination On position; the P5 jumper is shown in the Internal Termination position.
See the table on “Jumper Configurations” on page 87 for more information.
If the NTSC/PAL Loop-Through is not connected on the DES-6804 module you must provide a 75Ω termination either externally, or by setting the P5 jumper to the Internal Termination position.
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Figure 7-5. Location of the J4 and the P5 Jumpers on the DES-6804
J4 Jumper
P5 Jumper
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Jumper Configurations
Jumper Setting Visual Configuration
J4 (Video Input Option)
Termination On(Default)
Termination Off
P5 (Genlock Input Option)
Loop-Through(Default)
Internal Termination
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Operation
OverviewYou can operate and confirm settings for the DEC/DES-6804 decoders using the two control switches and the LED indicators on the card-edge of the module. As with all 6800/7000 products, external monitoring equipment is also required.
Figure 7-6. Card-Edge Controls and Indicators on the DEC/DES-6804
ControlsTwo controls provide access to all of the parameter settings on the decoders.
• The SW1 mode Select rotary switch selects all of the control parameters.
• The SW3 Down/Up toggle switch adjusts parameter values. When you press the switch Up, parameter values increase. When you push it Down, parameter values decrease.
The DEC-6804 and DES-6804 decoders require 10 seconds to stabilize after they are turned on.
SW1 MODE SELECTRotary Switch
SW3 DOWN/UPToggle Switch
LED Indicators
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LED IndicatorsMost of the LED indicators operate in a straightforward manner. However, when you make changes to your decoder settings, you must watch the D1 and D2 LEDs together to choose the correct parameter groups.
Because there are a large number of parameters on the DEC-6804 and DES-6804 decoders, you need four different parameter groups for each application. Two parameter groups are common to NTSC and PAL-B applications, and two additional parameter groups separately apply only to NTSC or PAL-B. See “Parameter Groups” on page 92 for more information.
D1 and D2 LEDs
To make changes in the correct parameter groups, first watch the D1 (Bank Mark 0) and D2 (Bank Mark 1) LEDs together. The on/off combination of these two LEDs shows which parameter group you have selected.
For example, if the D1 LED is Off, and the D2 LED is On, you have selected parameter group C. If the D1 LED is On, and the D2 LED is Off, you have selected parameter group B.
The table below shows the four D1 and D2 LED combinations that indicate which parameter group is active.
D3 to D8, and D16 LEDs
The remaining LEDs on the DEC-6804 and DES-6804 decoders provide status information using signals that are on, off, or blinking. See the table “LED Indicator Descriptions” on page 90 for a complete list of all LED indicators and their meanings.
LED Indicators for Parameter Groups
D1 LED(Bank Mark 0)
D2 LED(Bank Mark 1)
Parameter Group Selected
Off Off A
On Off B
Off On C
On On D
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LED Indicator Descriptions
LED LED Color Name Status Description
D1 and D2
Green(D1 and D2 LEDs flicker briefly when toggle switch SW3 is first moved to either the Up or Down position)
BANK MARK 0 and BANK MARK 1
D1: OffD2: Off
Parameter group A is selected.
D1: OnD2: Off
Parameter group B is selected.
D1: OffD2: On
Parameter group C is selected.
D1: OnD2: On
Parameter group D is selected.
D3 Green 525
On The 525 standard is detected or forced.
Off The 525 standard is not detected or forced.
Blinking The module detects a 525 standard error.
D4 Green AUTOOn The module is in detect standard mode.
Off The module is in force standard mode.
D5 Green 625
On The 625 standard is detected or forced.
Off The 625 standard is not detected or forced.
Blinking The module detects a 625 standard error.
D6 YellowGENLOCK(DES-6804 only)
On The signal is locked to genlock.
Off The module is in free-run mode.
Blinking The module is set to genlock, but is not locked.
D7 GreenFREEZE(DES-6804 only)
On The module’s input video is frozen.
Off The module’s input video is not frozen.
D8 Yellow TSGOn The test signal generator is operating.
Off The test signal generator is not operating.
D16Yellow
TBC (DES-6804 only)
On The time base corrector is operating.
Off The time base corrector is not operating.
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Changing Parameter SettingsFollow these steps to change the parameter settings on the DEC-6804 and DES-6804 decoders:
1. Set the SW1 rotary switch to 0.
2. Push the SW3 toggle switch UP or DOWN to select the parameter group that you need.
3. Observe the D1 and D2 LED combination to ensure that you have selected the correct parameter group.
4. Rotate the SW1 switch to the number or letter that corresponds with the parameter you are selecting.
5. Push the SW3 switch UP or DOWN to change the parameter value while observing the results on a waveform monitor or vectorscope.
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Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer Parameter Groups
Parameter GroupsWhen you change parameter options on the DEC-6804 and the DES-6804 modules, you need to access different parameter groups. The first two groups of parameters (A and B) are common to both NTSC and PAL-B. In addition, there are two separate parameter groups (C and D) for both NTSC and PAL-B.
Synchronization and genlock parameters shown in the parameter groups apply only to the DES-6804 module.
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Common Parameter Groups A and B (NTSC and PAL-B)Parameter groups A and B are common to both NTSC and PAL-B decoders.
Common Parameter Group A
SW1 Position Function SW3 Down SW3 Up Default Value
0 Group Select Group Decrease Group Increase Group A
1 Standard Force Auto Auto
2 Force Standard 625 525 525
3 Decode mode Force Auto Auto
4 Force mode Notch Filter 2-D Adaptive Filter 2-D
5 Genlock (DES-6804 only)
Free Run Sync mode Sync mode
6 Sync mode(DES-6804 only; activated by Sync mode option in Genlock)
Delay mode Synchronizing mode
Synchronizing mode
7 Analog Video Level Decrease Increase
Factory Settings
8 Analog Black Level Decrease Increase
9 Proc Luma Level Decrease Increase
A Proc Chroma Level Decrease Increase
B Proc Hue Phase [wraps] (NTSC only)
Decrease Increase
C Proc Cb Offset Decrease Increase
D Proc Cr Offset Decrease Increase
E (Not functional)
F Factory Recall Recall Recall All default values in parameter groups A, B, C, and D.
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Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer Parameter Groups
Common Parameter Group B
SW1 Position Function SW3 Down SW3 Up Default Value
0 Group Select Group Decrease Group Increase Group A
1 Freeze (DES-6804 only) Off On Off
2 Freeze mode (DES-6804 only)
Field Frame Field
3 Field Freeze mode(DES-6804 only)
Field 1 Field 2 Field 1
4 H Phase (DES-6804 only; this function is available in both Delay mode and Synchronizing mode) [wraps]
Decrease Increase Factory Settings
5 V Phase(DES-6804 only; this function is available in both Delay mode and Synchronizing mode) [wraps]
Decrease Increase
6 Input Video Active Lines With/Without Setup(Disabled in PAL-B)
With Without With
7 Black Clip Disable Enable Disable
8 Hot Switch(DES-6804 only; Group A Genlock parameter must be set to Free-Run, or Sync mode parameter must be set to Synchronizing mode)
Three options are available in a clipped list: Disable, Enable, and Auto
• Disable: Passes video including any input disturbances
• Enable: Freezes or selects test signal
• Auto: TBC activation will disable the hot switch
Auto
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9 Loss of Video mode
Displays Selected Test Pattern
Freezes when hot switch is enabled (DES-6804)Pass (DEC-6804)
Freeze (DES-6804) Pass (DEC-6804)
Common Parameter Group B
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Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer Parameter Groups
Common Parameter Group B (Continued)
SW1 Position Function SW3 Down SW3 Up Default Value
A Edge Enhancement (NTSC only)
Off On Off
B TBC Switch Delay(DES-6804 only)
Decrease 50 ms(min 100 ms)
Increase 50 ms(max 2 sec)
500 ms
C TBC mode (DES-6804 only; Group A Genlock parameter must be set to Free-Run, or Sync mode parameter must be set to Synchronizing mode)
Three options are available in a clipped list: Disable, Enable, and Auto
Auto
D TSG Disable Enable Disable
E TSG Pattern Decrease Increase Pattern 1
F Factory Recall Recall All default values in parameter groups A, B, C, and D.
Common Parameter Group B
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Parameter Groups C and D (NTSC)In NTSC, parameter group C includes VBI line-by-line process and bypass control parameters. Parameter group D includes VBI line-by-line setup remove control, and input video VBI lines with or without setup.
Parameter Group C (NTSC)
SW1 Position Function SW3 Down SW3 Up Default Value
0 Group Select Group Decrease Group Increase Group A
1 VBI Line-by-Line Process Control Disable Enable Disable
2 Field Field 1 Field 2 Field 1
3 Line 10 Notch Bypass Notch
4 Line 11 Notch Bypass Notch
5 Line 12 Notch Bypass Notch
6 Line 13 Notch Bypass Notch
7 Line 14 Notch Bypass Notch
8 Line 15 Notch Bypass Notch
9 Line 16 Notch Bypass Notch
A Line 17 Notch Bypass Notch
B Line 18 Notch Bypass Notch
C Line 19 Notch Bypass Notch
D Line 20 Notch Bypass Notch
E Line 21 Notch Bypass Notch
F Line 22 (both fields) Three options are available in a wrapping list: Notch, Comb and Bypass.
Comb
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Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer Parameter Groups
Parameter Group D (NTSC)
SW1 Position Function SW3 Down SW3 Up Default Value
0 Group Select Group Decrease Group Increase Group A
1 VBI Setup Remove Line-by-Line Control
Disable Enable Disable
2 Field Field 1 Field 2 Field 1
Input Video VBI Lines With/Without Setup
SW1 Position Function SW3 Down SW3 Up Default
3 Line 10 Without With Without
4 Line 11 Without With Without
5 Line 12 Without With Without
6 Line 13 Without With Without
7 Line 14 Without With Without
8 Line 15 Without With Without
9 Line 16 Without With Without
A Line 17 Without With Without
B Line 18 Without With Without
C Line 19 Without With Without
D Line 20 Without With Without
E Line 21 Without With With
F Line 22 Without With With
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Parameter Groups C and D (PAL-B)In PAL-B, parameter groups C and D both include VBI line-by-line process and bypass control parameters.
Parameter Group C (PAL-B)
SW1 Position Function SW3 Down SW3 Up Default
Value
0 Group Select Group Decrease Group Increase Group A
1 VBI Line-by-Line Process Control Disable Enable Disable
2 Field Select Field 1 Field 2 Field 1
3 Field 1: Line 6Field 2: Line 319
Notch Bypass Notch
4 Field 1: Line7Field 2: Line 320
Notch Bypass Notch
5 Field 1: Line 8Field 2: Line 321
Notch Bypass Notch
6 Field 1: Line 9Field 2: Line 322
Notch Bypass Notch
7 Field 1: Line 10Field 2: Line 323
Notch Bypass Notch
8 Field 1: Line 11Field 2: Line 324
Notch Bypass Notch
9 Field 1: Line 12Field 2: Line 325
Notch Bypass Notch
A Field 1: Line 13Field 2: Line 326
Notch Bypass Notch
B Field 1: Line 14Field 2: Line 327
Notch Bypass Notch
C Field 1: Line 15Field 2: Line 328
Notch Bypass Notch
D Field 1: Line 16Field 2: Line 329
Notch Bypass Notch
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Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer Parameter Groups
E Field 1: Line 17Field 2: Line 330
Notch Bypass Notch
F Field 1: Line 18Field 2: Line 331
Notch Bypass Notch
Parameter Group C (PAL-B)
SW1 Position Function SW3 Down SW3 Up Default
Value
Parameter Group D (PAL-B)
SW1 Position Function SW3 Down SW3 Up Default
Value
0 Group Select Group Decrease Group Increase Group A
1 VBI Line-by-Line Process Control Disable Enable Disable
2 Field Field 1 Field 2 Field 1
3 Field 1:Line 19Field 2: Line 332
Notch Bypass Notch4 Field 1:Line 20
Field 2: Line 333
5 Field 1:Line 21Field 2: Line 334
6 Field 1: Line 22Field 2: Line 335 Three options are available in a
wrapping list: Notch, Comb and Bypass.
Comb7 Field 1:Line 23
Field 2: Line 336
8 to F (Not functional)
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Audio Sync Interface (DES-6804 Only) Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer
Audio Sync Interface (DES-6804 Only)The DES-6804 is designed to provide synchronization with 6800/7000 series audio modules using the external I/O DELAY connector. More information on this future-use feature will be released as modules become available.
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Chapter 7: DEC-6804 Decoder and DES-6804 Decoder with Frame Synchronizer Specifications
Specifications
Analog Video Input
Analog Video Processing
Digital Video Processing
Item Specification
Standards NTSC, PAL-B
Level 1 V p-p ±2.5 dB
Impedance 75Ω
Return Loss >40 dB to 5.75 MHz
Common Mode Rejection
>60 dB at 50/60 Hz
Common Mode Range
5 V p-p
Video Level Adjust Range
±6 dB
Item Specification
Gain Range ±6 dB
Hue Range ±180°
Item Specification
Input 12-bit quantized video
Decoding Algorithm 3-line adaptive comb
Frequency Response ±0.1 dB to 5.75 MHz
Luma Signal to Noise Ratio
>60 dB 10 kHz to 6 MHz
Minimum Delay NTSC mode: 134 µsPAL mode: 200 µs
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Video Outputs
Item Specification
Quantity 4
Standard 259M-C; 270 Mb/s
Connector BNC per IEC 169-8
Impedance 75Ω
Return Loss >18 dB to 270 MHz
Signal Level 800 mV ±10%
DC Level 0.0 V ±0.5 V
Rise and Fall Times 400-700 ps (20% to 80% amplitude)
Overshoot <10% of amplitude (all outputs terminated)
Jitter <500 ps
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Phasing (DES-6804)
Storage (DES-6804)
Audio Synchronization Interface Output (DES-6804)
Reference Input (DES-6804)
Item Specification
Horizontal Phase Adjustment Range
1 line, with resolution of 37 ns
Vertical Phase Adjustment Range
1 frame, with resolution of 1 line
Item Specification
Number of Fields 2 (1 frame)
Data Path 10 bits
Item Specification
Output Ports 1
Connector BNC per IEC 169-8
Impedance 75Ω
Item Specification
Level 1 V p-p
Signal Type Analog composite NTSC/PAL-B
Connector BNC
Impedance 75Ω
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Module Start-Up
Typical Power Dissipation
Module Duration
DEC-6804 8 sec (approximately)
DES-6804 10 sec (approximately)
Item Specification
DEC-6804 Positive rail: 5.2 WNegative rail: 0.28 WTotal: <6 W
DES-6804 Positive rail: 5.46 WNegative rail: 0.30 WTotal: <6.2 W
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Chapter 8
ENC/ENS/ENX-6801/MEncoder Modules and Accessories
OverviewThe ENC-6801 SDI to NTSC/PAL-B Encoder is a compact and economical module for NTSC, PAL-B, and PAL-M encoding. Supporting 4:2:2 serial digital inputs, the unit may be used as either a broadcast quality encoder or as a monitoring encoder. The ENS-6801 module is the same as the ENC but comes equipped with a Frame Synchronizer sub-module. The ENX-6801 module is the same as the ENC but comes equipped with a Cross Color Reducer submodule.
Specifications and designs are subject to change without notice.
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Chapter 8: ENC/ENS/ENX-6801/M Encoder Modules and Accessories Features
FeaturesThe ENC/ENS/ENX-6801/M has the following features:
• 10-bit broadcast quality encoding
• Color-frame locking to composite reference
• Built-in line delay and synchronizer
• Optional infinite phasing with frame synchronizer module
• User-adjustable luminance/chroma gain
• Built-in test signals
The terms “line synchronizer” and “Line Store”are used interchangeably to describe the buffer memory capability of the ENC-6801 and ENX-6801.
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Specifications
Serial Video Inputs
Video Outputs
Item Specifications
Standard SMPTE 259M-C 270 Mb/s 525/625 component
Connector BNC per IEC 169-8
Impedance 75Ω terminating
Return Loss > 18 dB to clock frequency
CMRR 30 Vp-p at 60 Hz
Equalization > 30 dB, 259M-C
Item Specifications
Serial Video Outputs 2
Standard SMPTE 259M-C
Connector BNC per IEC 169-8
Signal Level 800 mV ±10%
Impedance 75Ω
Return Loss > 18 dB to clock frequency
Overshoot < 10%
Rise and Fall 400-700 ps (20 to 80% amplitude)
Jitter < 300 ps
Analog Composite Outputs
4
Standard NTSC/PAL-B or NTSC/PAL-M
Signal Level 1 Vp-p nominal ± 10%
Impedance 75Ω
Return Loss > 40 dB to 5 MHz
Isolation > 46 dB to 5 MHz
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Filtering per CCIR601 specification
Response NTSC/PAL-M: ± 0.2 dB to 4.6 MHz PAL-B: - 0.4 dB to 5.2 MHz
Differential Gain < 0.6 degrees
Differential Phase < 0.8%
Group Delay < 8 ns to 5 MHz
RMS Signal to Noise > 59 dB to 5 MHz
Item Specifications
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Phasing Range
Power Consumption
Reference Inputs
Item Specifications
ENC Delay 5 µs - 2.9 lines
Line Synchronizer Mode
5 µs - 1 line (relative to serial input)
ENX Delay Mode 1.1 lines - 3.9 lines
Line Synchronizer Mode
1.1 lines - 2 lines (relative to serial input)
ENS Frame Sync Mode
Infinite
Cable Pre-EQ Up to 50 m of Belden 8281 equivalent
Resolution 10 bits
ENC-6801 ENS-6801 ENX-6801
+ve 4.3 W 6.3 W 5.2 W
-ve 1.5 W 1.6 W 1.4 W
Total 5.8 W 7.9 W 6.6 W
Item Specifications
Reference Inputs 2 (separate for NTSC and PAL-B or NTSC and PAL-M)
Signal Level 1 Vp-p
Impedance High impedance
Required Signal Black burst SMPTE 170M complying in case of NTSC CCIR Rep 624-3 complying for PAL-B
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Chapter 8: ENC/ENS/ENX-6801/M Encoder Modules and Accessories Specifications
Signal Level 1 Vp-p CCIR Rep 624-3 complying for PAL-B
RMS S/N > 40 dB to 5 MHz
SCH Error < ± 60 degrees
Item Specifications
Reference Inputs 2 (separate for NTSC and PAL-B or NTSC and PAL-M)
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InstallationThe ENC/ENS/ENX-6801 modules are designed to operate in an ambient temperature range of 0° to 40° C. No special provisions for cooling are necessary, but care should be taken to prevent excessive heat rise in closed, unventilated equipment racks.
The ENC/ENX-6801 modules can be installed in either a 1RU FR-6801, an FR-7001 frame, or a 2RU FR-6804(-1) frame. The ENS-6801 module can only be installed in an FR-6804(-1) frame. When installed in the FR-7001 frame, an ENC/S/X-6801-M back module is required. When installed in the FR-680X frame, a back panel overlay is required. For loop-through genlock input, a T-adaptor can be used because the reference inputs are high impedance. (A T-adaptor with 75 Ω termination is required for terminating inputs.)
Figure 8-1. Back Module and Overlay
For PAL-M reference input, use 625 genlock input connection.
Before connecting the ENC-6801 module to primary power, check (and if necessary, set) the input voltage selector switch on the rear panel to match the local line voltage.
ENC-6801ENS-6801ENX-6801
SERIAL INPUT
GENLOCK 625GENLOCK 525
PAL/NTSC OUTPUT1 2
3 4
SERIAL OUTPUT
1 2
ENC/S/X-6801-M
SERIALOUTPUT
G/L 525SERIALINPUT
1
2
PAL/NTSCOUTPUT
1
24
3
G/L 625
The back box is used when the ENC/ENX-6801 module is installed into either an FR-7001 series or FR-7000MB MIX BOX frame.
This overlay is used when the ENC/ENS/ENX-6801 module is installed into a 6800 series frame.
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Chapter 8: ENC/ENS/ENX-6801/M Encoder Modules and Accessories Block Diagram
Block Diagram
Figure 8-2. ENC/ENS/ENX-6801 Block Diagram
Deserializer and FIFO DelayThe serial digital video enters the module through a 75 W terminating BNC connector. The serial reclocking input stage removes high frequency jitter and also auto-equalizes cable losses (up to 300 m of cable) in case of a 270MHz 4:2:2 serial signal. The remaining low- frequency portion of the jitter is removed by the 27 MHz parallel clock PLL loop that supplies the read clock for the U20 FIFO chip. The function of the 5K word length FIFO is to adjust the module's delay between the minimum latency and a maximum 2.9 horizontal line delay. The on-board FIFO can be switched to Line-store mode up to one full line, and in this case, the reference has to be within one line range. The module's functionality can be expanded by adding the 6801FS-IO frame synchronizer sub-board to the A1 connector.
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Multi-Standard Encoder and Output Buffer The multi-standard digital video signal encoding is done in U17 TDS6294 encoder chip. The encoder is capable of encoding all legal colors which fulfill the diamond display with adequate headroom. The adjustable parameters are listed. See “User-Controlled Parameters” on page 116 for more information. There is a user adjustment group that allows the user to correct luminance chrominance balance and hue if the input signal requires correction. However, by a disable function, the encoder can be easily switched to the Calibrated mode. The output of the 12-bit resolution D/A has a ±10% adjustment range. The U39 output buffer can drive four double-terminated cable and has a cable pre-equalization range of up to 50 m cable length.
GenlockThe composite output video is automatically color-frame locking. If a blackburst reference signal is present, no selection is necessary. The serial digital signal and the reference have to be frequency-locked and the phase difference has to be within ±5 video lines for stable color-frame locking. When color-frame locking is established, the phasing adjustment range is according to specifications and referenced to the serial digital input source.
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Chapter 8: ENC/ENS/ENX-6801/M Encoder Modules and Accessories User-Controlled Parameters
User-Controlled Parameters
ENC/ENS-6801 Bank ATo make adjustments see the additional tables on the following pages.
To choose PAL-M standard: in Bank A, position 3, select PAL-M mode.
HexSwitch Function Toggle
DownToggle Up
Default Value
BANK A
0 *6Bank Select A B A
1 *6Auto Select Forced Auto Auto
2 Mode Select 525 625 525
3 PAL-M NTSC PAL-M NTSC
4 Reserved
5 Video Level - + 0x200
6 *1Setup Off On On
7 Vertical Blanking Pass Delete Pass
8 Chroma Disable Enable Enable
9 Burst Disable Enable Enable
A *2User Corrections Disable Enable Disable
B Hue - + 0x00
C Chroma Level - + 0x80
D Luma Level - + 0x80
E Color Frame Offset Decrease *Refer to Notes
Increase
F
The 625 LED is disabled in ENC/ENS/ENX-6801M; the 525 LED should be lit steadily in NTSC mode and flashing continuously in PAL-M mode; and the Auto LED and 525 LED will flash alternately if the timing is invalid in line sync mode.
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ENC/ENS-6801 Bank B
HexSwitch Function Toggle
DownToggle Up
Default Value
BANK B
0 Bank Select A B A
1 *5Fine Phase - + 0x00
2 Horizontal Phase - + 0x00
3 *3 Vertical Phase - + 0x00
4 *3 Video Freeze Disable Enable Disable
5 *3 Freeze mode Field Frame Field
6 *3 Freeze Field Sel Field 1 Field 2 Field 1
7 Hotswitch Disable Enable Enable
8 *3 Hotswitch Freeze Black Field Field
9 *3 Goto Black Disable Enable Disable
A *4 Timing mode Line Delay Line Store Line Delay
B
C
D Test Waveform Disable Enable Disable
E Waveform 75% Color Bars
Ramp 75% Color Bars
F Factory Values Reset Set (LED FLASH)
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Chapter 8: ENC/ENS/ENX-6801/M Encoder Modules and Accessories User-Controlled Parameters
ENX-6801 Bank A
HexSwitch Function Toggle
DownToggle Up
Default Value
BANK A
0 Bank Select A B A
1 Auto Select Forced Auto Auto
2 Mode Select 625 525 525
3 PAL-M NTSC PALM NTSC
4 Rate Select 270 360 270
5 Video Level - + 0x80
6 *1Setup Off On On
7 Vertical Blanking Enable Disable Disable
8 Chroma Disable Enable Enable
9 Burst Disable Enable Enable
A *2User Corrections Disable Enable Disable
B Hue - + 0x00
C Chroma Level - + 0x80
D Luma Level - + 0x80
E
F
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ENX-6801 Bank B
HexSwitch Function Toggle
DownToggle Up
Default Value
BANK B
0 Bank Select A B A
1 Fine Phase - + 0x00
2 Horizontal Phase - + 0x00
3 Cross Color Reduction
Disabled Enabled Disabled
4
5
6
7
8
9
A Timing mode Delayed Sync Delayed
B
C
D Test Waveform Disable Enable Disable
E Waveform 75% Color Bars
Ramp 75% Color Bars
F Factory Values Reset Set (LED FLASH)
Function Description
*1 Valid only in NTSC mode.
*2 Overwrites values to nominal of parameters A, B and C if Disabled is selected.
*3 These parameters are controlled only if frame synchronizer sub-board is present.
*4 Controls mode of line FIFO and must be set to Line Store if sub-board is present.
The terms “Line Synchronizer and Line Store” are used interchangeably.
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Delay ModeIn Line Delay mode, the clock used to input to the memory buffer is derived from the input signal. The clock used to output from the memory buffer is also derived from the input signal. In this mode, high-frequency jitter is removed at the input reclocking circuit, but low-frequency jitter will pass right through the entire unit.
Line StoreIn Line Store (i.e. line synchronizer) mode, the clock used to input to the memory buffer is derived from the input signal. The clock used to output from the memory buffer is derived from the input genlock signal. In this mode, high-frequency jitter is removed at the input reclocking circuit, and the low-frequency jitter is removed through the frame buffer.
Input SignalThe modules are shipped in line Delay mode because the timing relationships within the system are not known. If the input signal is not advanced less than one line in time from the destination, the line synchronizer in the encoder cannot provide the correct picture position.
Output SignalThe output signal will either “slip” a line up or down depending on whether the signal is arriving at the destination early or late.
*5 Controls fine phase for ENC/ENX-6801. For fine phase control of ENS-6801, use potentiometer on front of plug-in submodule.
*6 Controls are disabled for PAL-M standard.
*7 • Increase refers to the SCH phase adjustment by 90° increments from 0° to 270°.
• Decrease adjust the SCH phase in the opposite direction: both of these adjustments are for PAL signals.
• NTSC signals will change to 0° or 180° phasing when selecting either increase or decrease.
Function Description
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Frame BufferThe frame buffer is analogous to a bit bucket with the input signal never overfilling or running slow enough to allow the bit bucket to empty and having a steady output at all times. The delay through the frame buffer will always be somewhere around a frame. If the bit bucket (i.e. frame buffer) overfills or empties, there will be a frame “slip”.
Line BufferThe line buffer is analogous to a tiny bit bucket with the input signal possibly overfilling or not being able to fill up this tiny bit bucket. The delay will always be around a line. If the line buffer overfills or empties, there will be a line “slip”.
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122 6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Chapter 9
MXA-6800-AES andMXA-6801-A2/A4
Video/Audio Multiplexer Module
OverviewThe MXA-6800 module is an Audio/Video Multiplexer (Mux). Two 20-bit digital audio channels (AES/EBU) are embedded into the Horizontal Ancillary Space (HANC) of a SMPTE 259M serial digital video signal. One MXA-6800 can be used to embed one group of audio into the HANC. One group is composed of four mono audio channels or two stereo audio channels.
The MXA-6800 always refers to both the analog and digital products.The MXA-6800-AES refers to the digital audio input version.The MXA-6801-A2/A4 refers to the analog audio input version.
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Chapter 9: MXA-6800-AES and MXA-6801-A2/A4 Video/Audio Multiplexer Module Features
FeaturesThe MXA-6800-AES and the MXA-6801-A2/A4 Video/Audio Multiplexer modules have the following features:
• Four serial outputs
• Accepts balanced 110Ω or unbalanced 75W AES (MXA-6800-AES)
• Accepts two balanced or four balanced analog audio inputs (MXA-6801-A2/A4)
• EDH on output
• Remote or local channel swap capability
• Independent audio delay on each left/right channel
• Independent audio gain on each left/right channel
• Mute on audio error control
• Adjustable mute duration
• Reports various audio errors for debugging system
• Choice of embedding (pass through, follow)
• Cascade capability for multiple group embedding
• Passes channel and user status bits
• 20-bit resolution (24-bit during audio processing)
• Interpolates/sample rate converts 10 KHz- 50 KHz audio data to 48 KHz
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Figure 9-1. MXA-6800-AES Block Diagram
SerialVideoInput
Interface
DSP, Gain, Delay,Invert, SwapProcessing
Audio
Processor
EDHProcessor
SerialVideoOutput
Interface
CPU
+
+ AESInput
Interface
AESInput
Interface
SampleRate
Converter
SampleRate
Converter
DSP, Gain, Delay,Invert, SwapProcessing
I AudioProcessor
2
I AudioProcessor
2
GPI 1GPI 2
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Figure 9-2. MXA-6801-Ax Block Diagram
SerialVideoInput
Interface
DSP, Delay,Invert, SwapProcessing
Audio
Processor
CPU
LevelControl
DSP, Delay,Invert, SwapProcessing
GPI 1GPI 2
+ AudioTermination
> 20k or 600Ω Ω
+ AudioTermination
> 20k or 600Ω Ω
LevelControl ADC
ADC
EDHProcessor
SerialVideoOutput
Interface
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Specifications
Serial Video Inputs
Serial Video Outputs
Item Specifications
Number 1
Standard SMPTE 259M-C; 270 Mb/s, 525/625 component
Connector BNC per IEC 169-8
Impedance 75Ω
Return Loss >18 dB to clock frequency
Signal Level 800 mV ± 10%
Equalization Up to 265 m of Belden 8281 @ 270 Mb/s
Video Processing Delay ~1 ms
Quantization 10-bit video/20-bit audio (24 bits during audio processing)
Embedding Standard SMPTE 272M
Compliance Level ACDG
Frames FR-6801, FR-6802, FR-6804, FR-7001
Item Specifications
Number 4
Return Loss > 18 dB to clock frequency
Signal Level 800 mV ± 10%
DC Offset 0 V ± 0.5 V
Rise and Fall Time 400- 700 ps (20- 80% amplitude)
Overshoot < 10% of amplitude (all outputs terminated)
MXA-6800 applies to both MXA-6800-AES and MXA-6801-A2/A4.
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Audio
MXA-6800-AES
MXA-6801-A2/A4
Item Specifications
Audio Processing Delay ~1.28 ms
Delay Adjustment Range 1.4 ms to 1.2 sec in steps of 0.28 ms
Item Specifications
Standard AES3-1992, AES2-id-1996
Number of Inputs 2 AES channels (1 group, 4 channels)
Impedance Termination 75Ω unbalanced or 110 Ω balanced
Input Audio Rate 32 kHz- 48 kHz synchronous or asynchronous
Gain Adjustment Range -121 dB to +6 dB in steps of 0.25 dB
Input Connector Types BNC or Weidmuller SL Series
Power Consumption 6.95 W (+6.5 V), 0.082 W (-6.5 V), 7.04 W (total)
Item Specifications
Number of Inputs 4 balanced analog audio cosampled at 48 kHz
Input Impedance >20 kΩ or 600Ω, jumper-selectable
ADC Type 24-bit, 128x oversampling
Maximum Input Level 0 dBFS = 24 dBu nominal when 20kΩ0 dBFS = 30 dBu nominal when 600Ωterminated, ± 10 dB gain adjustable in step of 0.5 dB
THD + N • <-98 dB THD+N w/in 20 Hz to 20 kHz @ 23.3 dBu in and -0.8 dBFS out (use 6801PS)
• <-101 dB THD+N w/in 30 Hz to 20 k Hz @ 23.3 dBu in and -0.8 dBFS out (use 6804PS)
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Terminology
Frequency Response ± 0.05 dB within 20 Hz to 20 kHz
CMRR -90 dB @ 60 Hz, -60 dB @ 20 kHz
SNR < -100 dB relative to full-scale 24 dBu
Linearity ± 0.2 dB within -100 dBFS to 0 dBFS
IMD (CCIF two-tone test) < 0.01 %
Intra Channel Crosstalk <-100 dB
Stereo Crosstalk <-100 dB
Dynamic Range > 100 dB
Input Connector Type Weidmuller SL Series
Channel Status and User Bit Professional Mode and 48 kHz frequency bits are inserted.
Power Consumption 1.8 A (+6.5 V), 120 mA (-6.5 V), 8.5 W (total)
Item Terminology
ADC Analog to Digital Converter
CMRR Common Mode Rejection Ratio
SNR Signal to Noise Ratio
THD + N Total Harmonic Distortion plus Noise
IMD Intermodulation Distortion
Item Specifications
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Chapter 9: MXA-6800-AES and MXA-6801-A2/A4 Video/Audio Multiplexer Module Installation
InstallationThe MXA-6800 module can be installed in a Leitch FR-680x series, FR-7001 series, or FR-7000MB MIX BOX frame.
Figure 9-3. Back Modules: MXA-6800-M1, MXA-6800-M2 (Digital MXA)
Figure 9-4. Back Module: MXA-6800-M3 (Analog MXA)
See Figures 9-3 to 9-6.
1 2
4 2
3 1
SERIALINPUT
SERIAL OUTPUTSAES
MXA6800-M1
REMOTE
CH L/R
4 2
3 1
SERIALINPUT
SERIAL OUTPUTS
AUDIO
MXA6800-M2
REMOTE
+ -
CH1 CH2
CH L/R
+ -
Used with the Used with the MXA-6800-AESx
4 2
3 1SERIALINPUT
SERIALOUTPUTS
REMOTECHL/R
MXA-6800-M3LEFT
CH
LEFT RIGHT
RIGHT
CHA
CHB
+ - + -
+ - + -
+ - + -Used with the MXA-6801-A2/A4
4 2
3 1SERIALINPUT
SERIALOUTPUTS
REMOTECHL/R
MXA-6800-M3LEFT
CH
LEFT RIGHT
RIGHT
CHA
CHB
+ - + -
+ - + -
+ - + -
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Figure 9-5. Rear Adaptor 6800B-AA for Balanced AES Input
- -
++
A
Audi
o
R
L
Serial Digital Video with Multiplexed Audio
Serial Digital Video Input
AES Input # 1
AES Input # 2
AUD
IO
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Figure 9-6. Using the 6800B-AA Rear Adaptor for Balanced Analog Audio
- -
++
A
Audi
o
R
L
Serial Digital Video withMultiplexed Audio
Serial Digital Video Input
Channel ARight Input
Channel ALeft Input
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Figure 9-7. FR680x Signal Connections and Signal Flow Diagramfor MXA-6800-AES
Serial DigitalVideo In
Serial Digital Video Out with Multiplexed Audio
AES-75
MXA-6800-AESSerial Digital Video with Multiplexed Audio
Serial Digital Video
AES-75
AES-75
MXA-6800-AES
SERIALINPUT
AES INPUT 2 NC
SERIAL OUTPUT
2 1
4 3
AES INPUT 1 NC
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Figure 9-8. FR680x Signal Connections and Signal Flow Diagramfor MXA-6801-A2/A4
Serial DigitalVideo In
Serial Digital Video Out with Multiplexed Audio
MXA-6801-A2/A4Serial Digital Video with Multiplexed Audio
Serial Digital Video
MXA-6800-xA
SERIALINPUT
SERIAL OUTPUT
2 1
4 3
+
+
_
_
Channel A Left
Channel A Right
Channel A LeftChannel A Right
Channel B LeftChannel B Right
When using the MXA-6801-A2/A4 in the FR680x frame, the user can only input one channel (left and right pairs).
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Jumper Settings
Model No. Mounting Frame
Rear Module/ Back Module
Jumper Settings (8 in total)
PCB Screened ID
MXA-6800-AESC FR-680x None Unbalanced AES 75Ω MXA-6800AESC
MXA-6800-AES-70C FR-700x MXA6800-M1 Unbalanced AES 75Ω MXA-6800AESC
MXA-6800-AES-68B FR-680x 6800B-AA Balanced AES 110Ω MXA-6800AESB
MXA-6800-AES-70B FR-700x MXA6800-M2 Balanced AES110Ω MXA-6800AESB
MXA-6801-A2-68 FR-680x 6800B-AA 2 Balanced Analog Inputs MXA-6801-A2/A4
MXA-6801-A4-70 FR-700x MXA-6800-M3 4 Balanced Analog Inputs MXA-6801-A4/A4
All MXA-6801-A2/A4 modules have bridge-through (loop-through) >20 Kw termination capability on the digital and analog inputs.
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MXA-6800-AES
Figure 9-9. MXA-6800-AES Full Board View with Jumper Settings
AES Input # 2Unbalanced AES (75 Ohm termination)
J8J9
J10
J14
Balanced AES (110 Ohm termination)
J8J9
J10
J14
For AES # 2 Balanced or Unbalanced loop-through, set J8 as shown:
No Jumper Plug
J2
J2
Local/Remote Control
Remote
Local
J4
Should always be OFFduring normal operation.
AES Input # 1Unbalanced AES (75 Ohm termination)
Balanced AES (110 Ohm termination)
For AES # 1Balanced or Unbalanced
loop-through, set J11 as shown:No Jumper Plug
J15J11J12
J13
J11J12
J13
J15
OFF
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MXA-6800-A2/A4
Figure 9-10. MXA-6801-A2/A4 Full Board with Jumper Settings
OperationThe seven segment LED display and discrete LEDs (on the front edge of the board) show the current status of the MXA-6801-A2/A4. The LED readout displays abbreviated names for the functions/parameters selected by the Rotary Switch (SW1).
The MXA-6801-A2/A4 has three operating modes (OS1, OS2, OS3) and the SW1 is used to select specific functions/parameters within them. For more detailed information on functions/parameters, the SW1 and the use of the Toggle Switch (SW2).
See “Control Parameters Summary” on page 142 and “Control Parameter Details” on page 147 for more information.
Should always be during normal operation.
OFF
J4 OFFJ2J2 Remote
LocalLocal/Remote Control
Analog AudioInput Termination
Channel B Right
Channel A Right
Channel B Left
Channel A Left
Open (default)
Open (default)
Open (default)
Open (default)
600 Ω
600 Ω
600 Ω
600 Ω
Common-Mode Rejection Adjustment Potentiometers:
these are factory set and sealed.
Warning! DO NOT ADJUST
THESE POTS
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Common Mode Adjust Potentiometers (pots)There are four factory-set and sealed-pots on the MXA-6801-A2/A4 (analog MXA). Do not adjust these pots.
LED Indicators (MXA-6800-AES)The table below describes the LED indicators and functions:
Name Color Function
Video Pres Green Video present and locked
AWS1 Pres Green AES input #1 present
AWS2 Pres Red AES input #2 present
AWS1 Err Red Error on AES input #1 (set Hex switch SW1 to display audio error number)
AWS2 Err Red Error on AES input #2 (set Hex switch SW1 to display audio error number)
Audio Mute Yellow Audio outputs are muted (LED flashes)
Config Err Red Hardware error (Exception: This light is on when the module is powered up)
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Figure 9-11. Front Edge with Hex, Toggle/Hex Switches,
LEDs (for MXA-6800-AES)
AES1 Present LED (Green)
AES2 Present LED (Green)
AES1 Error LED (Red)
AES2 Error LED (Red)
Audio Mute LED (Yellow)
Config Error LED (Red)
Hex Switch
Toggle Switch
Hex Display
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LED Indicators (MXA-6801-A2/A4)The table below describes the LED indicators and functions:
*When the analog input level is greater than 23.3 dBu (approximately -1 dBFS), a peak detector light will turn on for the corresponding input. A peak detector light will increase in brightness as the input level increases from 23.3 dBu, a light flicker to fully bright. If occasional peaks are seen on the input, a peak detector light may flash on for a period of time. The period of time is dependent upon the duration of the peak. Reduce the gain or input signal level to avoid clipping.
Name Color Function
Video Pres Green Video present and locked
Peak Ch A Left
Red *Overload/clipping on Channel A left input
Peak Ch A Right
Red *Overload/clipping on Channel A right input
Peak Ch B Left
Red *Overload/clipping on Channel B left input
Peak Ch B Right
Red *Overload/clipping on Channel B right input
Audio Mute Yellow Audio outputs are muted (LED flashes)
Config Err Red Hardware error (Exception: This light is on when the module is powered up)
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Toggle Switch and LED Display OperationAny function/parameter (embedding mode, embedding group, gain, or delay) can be adjusted with the Toggle Switch. Moving the Toggle Switch (SW2) down or to the left decreases the value of the parameter. Moving the SW2 up or to the right increases the value of the parameter. If the value of a parameter is negative, all decimal points are lit. When the maximum value of a parameter is reached, the value wraps around to the opposite end of the range: up/down or left/right, depending on which way the PCB was installed (vertically or horizontally).
Figure 9-12. Front Edge with Hex, Toggle/Hex Switches,
LEDS (for MXA-6801-A2/A4)
PEAK CHA LEFT LED (Red)
PEAK CHA RIGHT LED (Red)
PEAK CHB LEFT LED (Red)
PEAK CHB RIGHT LED (Red)
Audio Mute LED (Yellow)
Config Error LED (Red)
Hex Switch
Toggle Switch
Hex Display
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Control Parameters SummaryTo modify the values of the function, turn the Rotary (Hex) Switch (SW1) as indicated in Table 1-2. The LED display will show a different acronym for each SW1 position and flashes between the function acronym and its value. To increase or decrease the value, move the Toggle switch (SW2) left/down or right/up. See “Toggle Switch and LED Display Operation” on page 141 for more information.
When using the MXA-6801-A2/A4 (Analog MXA), the Hex switch should be left in position 0 during normal operation. This allows the Analog MXA to operate at its maximum performance level.
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Operator Mode 1 (OS1)
SwitchPosition(SW1)
Function Range(Adjusted using Toggle Switch SW2) Hex
0 No Adjustment ---
1 Operator Mode Operator Mode (OS1, OS2, OS3) con
2 Lock Mode 525, 625, Auto. See “Lock Mode” on page 154 for further information.
Loc
3 Embed Mode See “Audio Embedding” on page 156 for further information.
Ebd
4 Embed Group 1, 2, 3, 4 Ebg
5 AES1: L Channel GainChannel A: L input gain
MXA-6800-AES:-121 dB to +6 dB in steps of 0.25 dB. See “Gain Value” on page 154 and “Stereo Mode” on page 155 for further information.
1gL
MXA-6801-A2/A4: -10 dB to + 10 dB in steps of 0.5 dB.
6 AES1: R Channel GainChannel A: R Input Gain
MXA-6800-AES:-121 dB to +6 dB in steps of 0.25 dB. See “Gain Value” on page 154 and “Stereo Mode” on page 155 for further information.
1gr
MXA-6801-2A/A4: -10 dB to +10 dB in steps of 0.5 dB.
7 AES2: L Channel GainChannel B: L Input Gain
-121 dB to +6 dB in steps of 0.25 dB. See “Gain Value” on page 154 and “Stereo Mode” on page 155 for further information.
2gL
MXA-6801-A2/A4: -10 dB to + 10 dB in steps of 0.5 dB.
8 AES2: R Channel GainChannel B: R Input Gain
-121 dB to +6 dB in steps of 0.25 dB. See “Gain Value” on page 154 and “Stereo Mode” on page 155 for further information.
2gr
MXA-6801-A2/A4: -10 dB to + 10 dB in steps of 0.5 dB. 2gr
9 AES1: L Channel DelayChannel A: L Input Delay
0 to 1.2 seconds in steps of 20 µs. See “Gain Value” on page 154 and “Stereo Mode” on page 155 for further information.
1dL
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A AES1: R Channel DelayChannel A: R Input Delay
0 to 1.2 seconds in steps of 20 µs. See “Gain Value” on page 154 and “Stereo Mode” on page 155 for further information.
1dr
B AES2: L Channel DelayChannel B: L Input Delay
0 to 1.2 seconds in steps of 20 µs. See “Gain Value” on page 154 and “Stereo Mode” on page 155 for further information.
2dL
C AES2: R channel delayChannel B: R Input Delay
0 to 1.2 seconds in steps of 20 µs. See “Gain Value” on page 154 and “Stereo Mode” on page 155 for further information.
2dr
D AES1: Swap L/R ChannelsChannel A: Swap L/R Channels
On/Off (Off: Do not swap L/R channel) 1SP
E AES2: swap L/R ChannelsChannel B: Swap L/R Channels
On/Off (Off: Do not swap L/R channel) 2SP
F Swap AES InputsSwap Channel A with Channel B
On/Off (Off: Do not swap inputs) ASP
SwitchPosition(SW1)
Function Range(Adjusted using Toggle Switch SW2) Hex
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Operator Mode 2 (OS2)
SwitchPosition(SW1)
Function Range (Adjusted using Toggle Switch SW2) Hex
0 No Adjustment ---
1 Operator Mode Operator Mode (OS1, OS2, OS3) con
2 Sample Distribution See “Switch Position 2 and Function” on page 155for further information.
Sd
3 Automatic Mute/Silence on Audio Error
On/Off (Not applicable for the MXA-6801-A2/A4)
SEr
4 Mute Duration See “Mute Duration” on page 155 for further information.
Sdu
5 Display Audio Error no. 0 = No audio errors see (Not applicable for the MXA-6801-A2/A4) for further information.
AEr
6 Mono/Stereo Audio On/Off (When On, the Left/Right pairs are treated as stereo signals) for further information.
ACh
7 Reserved ...
8 AES1: L Channel Mute Channel A: L Input Mute
On/Off (When On, the mute duration sets the rate.) 1SL
9 AES1: R Channel Mute Channel A: R input mute
On/Off (When On, the mute duration sets the rate.) 1Sr
A AES2: L Channel Mute Channel B: L Input Mute
On/Off (When On, the mute duration sets the rate.) 2SL
B AES2: R Channel Mute Channel B: R Input Mute
On/Off (When On, the mute duration sets the rate.) 2Sr
C AES1: L Channel Invert Channel A: L Input Invert
On/Off (When On, the channel is inverted.) 1FL
D AES1: R Channel Invert Channel A: R Input Invert
On/Off (When On, the channel is inverted.) 1Fr
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Operator Mode 3 (OS3)
E AES2: L Channel Invert Channel B: L Input Invert
On/Off (When On, the channel is inverted.) 2FL
F AES2: R Channel Invert Channel B: R Input Invert
On/Off (When On, the channel is inverted.) 2Fr
SwitchPosition(SW1)
Function Range (adjusted using toggle switch SW2) Hex
0 No Adjustment ---
1 Operator Mode Operator Mode (OS1, OS2, OS3) con
2 AES Data Format AES audio data (Off) or AES non-audio data (On)(Not applicable for the MXA6800-Ax)
dF
3 - 9 Reserved …
A - E Reserved …
F Factory Recall On or Off (When On, the factory default settings are recalled.)
dEF
SwitchPosition(SW1)
Function Range (Adjusted using Toggle Switch SW2) Hex
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Control Parameter DetailsThe following table show the three Operator Modes with possible rotary switch positions (SW1) and the resulting parameters. See “Audio Error Messages” on page 153 for further information (not applicable to the MXA-6800-A2/A4).
Operator Mode 1 The following table describes the Operator Mode 1 with switch positions 0 to 9, A to F:
OperatorMode
SwitchPosition Result
1 0 No adjustment when the Hex switch is in this position, no parameters can be altered. Three dashes “- - -” will be displayed.
1 1 Operator mode can be changed to OS1, OS2, OS3.
1 2 Lock mode can be set to one of the following:
• Auto system detects the standard of the serial digital input andautomatically sets the standard.
• 525 or 625 forces the system to the selected standard. See the default is Auto.
1 3 Embed mode:
• The default is mode 1.
See “Audio Embedding” on page 156 for further information.
1 4 Embed Group:
• Can be set to group 1, 2, 3, or 4. The default is group 1.
1 5 MXA-6800-AES: AES1, L Channel Gain. The Channel Gain has a range of -0 x 1E8 to +0 x 018 or -121 dB to +6 dB, in increments of 0.25 dB. The default is +0.25dB.
MXA-6801-A2/A4: Channel A: Left input gain.The Channel Gain has a range of -0Ax to +0Ax or -10 dB to +10 dB in increments of 0.5 dB. The default is 0 dB (unity gain).
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1 6 MXA-6800-AES: AES1: R Channel Gain The Channel Gain has a range of 0 x 1E8 to +0x018 or -121 dB to +6 dB in increments of 0.25 dB. The default is +0.25 dB.
MXA-6801-A2/A4: Channel A: Right input gain.The channel gain has a range of -0 A x to +0Ax or -10 dB to +10DB in increments of 0.5 dB. The default is 0 dB (unity gain).
1 7 MXA-6800-AES: AES2: L Channel Gain The channel gain has a range of -0x1E8 to 0x018 or -121 dB to +6 dB in increments of 0.25 dB. The default is +0.25 dB.
MXA-6801-A2/A4: Channel B: Left input gain.The channel gain has a range of -0 Ax to +0 Ax or -10 dB to +10 dB in increments of 0.5 dB. The default is 0 dB (unity gain).
1 8 MXA-6800-AES: AES2: R Channel GainThe channel gain has a range of -0 x 1E8 to 0 x 018 or -121 dB to +6 dB in increments of 0.25 dB. The default is +0.25 dB.
MXA-6801-A2/A4: Channel B: Right input gainThe channel gain has a range of -0 Ax to +0 Ax or -10 dB to +10 dB in increments of 0.5 dB. The default is 0 dB (unity gain).
1 9 AES1: L Channel Delay or Channel A: L input delayThe channel delay has a range of 0 x 000 to +0 x EA5F or 0 sec to 1.2 sec in increments of 20 µs. The default is 0 sec.
1 A AES1: R Channel Delay or Channel A: R input delayThe channel delay has a range of 0 x 000 to +0 x EA5F or 0 sec to 1.2 sec in increments of 20 µs. The default is 0 sec. See “Gain Value” on page 154 for more information.
1 B AES2: L Channel Delay or Channel B: L input delayThe channel delay has a range of 0 x 000 to +0 x EA5F or 0 sec to 1.2 sec in increments of 20 µs. The default is 0 sec. See “Gain Value” on page 154 for more information.
1 C AES2R: Channel Delay or Channel B: R input delayThe channel delay has a range of 0 x 000 to +0 x EA5F or 0 sec to 1.2 sec in increments of 20 µs. The default is 0 sec. See “Gain Value” on page 154 for more information.
OperatorMode
SwitchPosition Result
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Operator Mode 2The following table describes the Operator Mode 2 with switch positions 0 to 9 and A to F:
1 D AES1: Swap L/R channels or Channel A: Swap L/R channels.
• If set to Off, do not swap the L/R channels.
• If set to On, swap the L/R channels. The default is Off.
1 F Swap AES inputs or Swap Channel A with Channel BIf set to Off, do not swap the AES/Channel inputsIf set to On, swap the AES/Channel inputs. The default is Off.
OperatorMode
SwitchPosition Result
OperatorMode
SwitchPosition Result
2 0 No adjustmentWhen the Hex switch is in this position, no parameters can be altered and three dashes “- - -” will be displayed on the Hex display.
2 1 Operator mode: Can be changed to OS1, OS2, OS3.
2 2 Sample Distribution
• When the Video Standard is 525, the valid range is 0 to 3.
• When the Video Standard is 625, the valid range is 0 to 2.
The default is 0. See “Switch Position 2 and Function” on page 155 for further information.
2 3 Automatic Mute/Silence on Audio Error
• If this parameter is turned On, mute both channels in the AES input, which displays the audio error.
• The default is Off.
(Not applicable for the MXA-6800-A2/A4)
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2 4 Mute Duration
• Fade Rate from current audio level to silence measured in seconds.
The value range is 0 - 7. The default is 4 (1 second). See “Mute Duration” on page 155 for further information.
2 5 Display Audio Error Number.(Not applicable in the MXA-6801-A2/A4)
2 6 Mono or Stereo Audio
• If this parameter is set to Mono (Off), then Left and Right signals will be handled individually.
• If it is set to Stereo (On), they will be treated the same. The same rule applies to the delay, mute, and channel invert.
• The default Stereo is On.
Channel Gain for the MXA-6800-AES
• The MXA-6800-AES, the AES1: L channel gain will be equal to the AES1: R channel gain.
• The AES2: L channel gain will be equal to AES2:R channel gain.
Channel Gain for the MXA-6801-A2/A4
• The MXA-6801-A2/A4, the Channel A: Left input gain will be equal to the Channel A.
• Right input gain and the Channel B: Left input gain will be equal to the Channel B: Right input gain.
2 7 Reserved
• The Hex display will display three dots, “...”
2 8 Mute AES1: L ChannelMute Channel A: L inputIf this parameter is On, the Left channel on AES input 1 will be muted. The default is Off.
OperatorMode
SwitchPosition Result
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2 9 Mute AES1: R ChannelMute Channel A: R input If this parameter is ON, the Right channel on AES input 1 will be muted. The default is Off.
2 A Mute AES2: L Channel Mute Channel B: L inputIf this parameter is On, the Left channel on AES input 2 will be muted. The default is Off.
2 B Mute AES2: R Channel. Mute Channel B: R input.If this parameter is On, the Right channel on AES input 2 will be muted. The default is Off.
2 C Invert AES1: L ChannelInvert Channel A: L inputIf this parameter is Off, the Left channel on AES input 1 will be inverted. The default is Off.
2 D Invert AES1: R Channel Invert Channel A: R inputIf this parameter is Off, the Right channel on AES input 1 will be inverted. The default is Off.
2 E Invert AES2: L Channel Invert Channel B: L inputIf this parameter is Off, The Left channel on AES input 2 will be inverted. The default is Off.
2 F Invert AES2: R ChannelInvert Channel B: R inputIf this parameter is Off, The Right channel on AES input 2 will be inverted. The default is Off.
OperatorMode
SwitchPosition Result
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Operator Mode 3The following table describes the Operator Mode 3 with switch positions 0 to 2, 3 to E and F:
OperatorMode
SwitchPosition Result
3 0 No adjustment
• When the Hex switch is in this position, noparameters can be altered and three dashes (“- - -”) will bedisplayed in the Hex display.
3 1 Operator mode
• Can be changed to OS1, OS2, OS3.
3 2 AES Data Format
• Set On when the AES input is non-audio data in AES format.
• The default is Off (audio data).
(Not applicable in the MXA-6801-A2/A4)
3 3 to E Reserved
• These switch positions are reserved in this mode, and the Hex display will show three dots (“. . .”).
3 F Factory Recall
• On or Off. When On, the factory settings are recalled. The default is Off.
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Audio Error MessagesThe following table describes the Audio Error messages. Error messages are not applicable to the MXA-6800-A2/A4:
AudioErrorNumber
Error Name Error Condition
0 No Error No errors
1 AES Input #1 receiver error
An AES input receiver error has occurred (crc, slipped sample).
2 AES Input #2 receiver error
An AES input receiver error has occurred (crc, slipped sample).
3 Embed Error #1
Unintentional overwrite of auxiliary data. See “Audio Error Numbers” on page 155 for further information.
4 Embed Error #2
Internal Audio FIFO over/underflow of auxiliary data:
• Asynchronism of audio to video clocks
• Incompatible sample distribution table
• RX_FIFO line is set too close.
See “Audio Error Numbers” on page 155 for further information.
5 Embed Error #3
Expected audio group is missing or in conflict with selectedgroup. See “Audio Error Numbers” on page 155 for further information.
6 Embed Error #4
Invalid embedding mode or missing internal video signal.See “Audio Error Numbers” on page 155 for further information.
7 Embed Error #5
Embedding error caused by embedding mode selected and/orembedded audio group missing on video input.See “Audio Error Numbers” on page 155 for further information.
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Lock Mode When the Lock Mode parameter is set to either 525 or 625, the system is forced to lock to only 525 or 625. Neither of these modes will force the output to a particular video standard. When the Lock Mode is set to Auto, the system automatically detects the input and locks to the detected standard.
Audio Error Messages
As seen in the feature list, there are six embedding modes (really five since one of them Auto selects the follow-up or overwrite mode.
Gain ValueThe gain value is adjusted in increments of 0.25 dB or 0.5 dB and the delay value in increments of 20 ms. Since the Hex Display can only display three characters, the values are displayed in Hex instead of decimal. For example, if the delay value displayed is 1FE, then the delay is 10.2 ms (20 ms times 1FE [510 decimal]). Since the delay range is large, 0 to EA5F, the last digit is not displayed. The third decimal point flashes when the last digit changes value. See “Hex to Decimal Conversion” on on page 158 for more information.
Item Function
Off Chooses the default “do nothing” mode.
Auto Automatically selects follow-up or overwrite embedding using sample distribution from the ROM table.
Justify Left-justify embedding after EAV.
Follow Embeds the group after the last embedded group.
Ovrwrite Overwrites the existing group. (This mode uses the same sample distribution as in the group that is being overwritten.
Cin-EMB Strips ADS clean and left-justifies embedding.
Clean Strips ADS clean and does not embed.
For proper operation, all pre-existing ADS groups must be left-justified.
See Appendix A for a detailed description and representation of graphics.
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Switch Position 2 and FunctionThe following table describes Switch position 2 and Sample Distribution function in 525 and 625:
Mute Duration The table below describes the Mute duration range of 0 to 7 (0 = 0 sec is hard mute):
Stereo Mode When Stereo Mode is enabled, the left and right controls are tied.
Audio Error Numbers If Audio Error numbers 3 to 7 are displayed, there is a hardware fault.
525 Switch Position
Function625 Switch Position
Function
0 Skip lines 11 and 274 (default, as per standard)
0 Skip lines 7 and 320 (default)
1 Skip no lines 1 Same as 0
2 Same as 0 2 Skip no lines (similar to early Sony™ embedders)
3 Skip lines 11, 12, 274 and 275
3 to 7 Reserved for future use
4 to 7 Reserved for future use
0 = 0 sec 4 = 1.00 sec
1 = 0.25 sec 5 = 1.25 sec
2 = 0.50 sec 6 = 1.50 sec
3 = 0.75 sec 7 = 1.75 sec
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Chapter 9: MXA-6800-AES and MXA-6801-A2/A4 Video/Audio Multiplexer Module Swapping Channels via Remote Control
Swapping Channels via Remote ControlThe GPI swap controls are available only when the MXA is used in an FR-7000 frame. To control channel swapping from the GPI, set the Remote/Local jumper to Remote. The default position for the Remote/Local jumper is Local. When the jumper is set to Local, the GPI controls will not function. When the jumper is set to Remote, the Hex switch swap controls will not function. The GPIs are active low.
To swap AES1 Left/Right with AES2 Left/Right, or Channel A Left/ Right with Channel B Left/Right, the Channel GPI control should be enabled.
The Left/Right GPI control should be enabled in order to swap AES1 Left with AES1 Right; AES2 Left with AES2 Right; Channel A Left with Channel A Right; or Channel B Left with Channel B Right. When the Left/Right GPI control is asserted, both left/right pairs are swapped.
Audio EmbeddingAll MXA modules embed audio data into one audio group at a time, filling positions W, X, Y and Z. See Figure 9-13 “Audio Group” on page 157 for more information. The group embedded is selected using the Hex switch on the module edge.
The MXA-6801-A2 accepts only two audio channels: Channel A Left and Channel A Right. Positions W and X are used for Channel A Left and Right, respectively. When using the MXA-6801-A2, audio group positions Y and Z are muted. Since the MXA modules embed audio in four channels at a time, it is not possible to use a second MXA-6801-A2 to fill positions Y and Z with additional audio data.
The MXA-6801-A4 accepts four audio channels: Channel A Left, Channel A Right, Channel B Left, and Channel B Right. These channels are embedded in positions W, X, Y, and Z, respectively.
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Figure 9-13. Audio Group
One audio group
W X Y Z
X = 2, 6, 10, 14
Group 2
Y = 3, 7, 11, 15
Group 3
Z = 4, 8, 12, 16
Group 4
W = 1, 5, 9, 13
Group 1
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Chapter 9: MXA-6800-AES and MXA-6801-A2/A4 Video/Audio Multiplexer Module Converting Hex to Decimal Numbers
Converting Hex to Decimal NumbersSince the Hex display can show only three characters, the values are shown in Hex instead of Decimal numbers. For example, to convert from Hex to Decimal numbers, see Figure 9-14, “Example of Hex to Decimal Conversion’’.
Figure 9-14. Example of Hex to Decimal Conversion
Decimal Number Hex Number
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 A
11 B
12 C
13 D
14 E
15 F
A F 6x x x 256 xx 16++Hex Number Decimal Number
x 1= 171110161 160A F6 A F 6 x 162x 162 15
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MXA-6800-AESThe following table describes the functions of the MXA-6800-AES:
Byte Bit Function RX TX Remarks
0 0 [0] Consumer use[1] Professional use
YY
YY
1 [0] Audio[1] Nonaudio
SS
YY
2- 4 (Emphasis) [000] Not indicated[100] No emphasis[110] 50/15 µs[111] CCITT J17
SSSS
YYYY
5 [0] Fs locked[1] Fs unlocked
YY
YN
6 - 7 [00] Not indicated[01] 48 KHz[10] 44.1 KHz[11] 32 KHz
YYYY
NYNN
48 KHz
1 0 - 3 (Channel Mode)
[0000] Not indicated[0001] 2 channel[0010] Mono[0011] Primary/secondary[0100] Stereo[0101] to [1111]
SSSSSS
YYYYYY
4 - 7 (User bit Mode)
[0000] Not indicated[0001] 192 bit[0010] AES 18[0011] User defined[0100] to [1111]
SSSSS
YYYYY
2 0 - 2 (Aux. bit usage)
[000] Not indicated[001] Audio data[010] Coord.[011] to [111]
SSSS
YNNN
20-bit
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3- 5 (Sample length)
[000] Not indicated [100][100] All other states
SSS
YNN
20-bit
3 0 - 7 Multichannel modes S Y
4 0 - 1 AES11 sync reference S Y
5 0 - 7 Unused S Y
6- 9 ASCII source ID S Y
10- 13 ASCII destination ID S Y
14- 17 Local sample address S Y
18- 21 Time-of-day address S Y
22 0 - 7 C data reliability S Y
23 0 - 7 CRCC S Y Recalculated CRC
Validity (V) Bit N Y V is set to zero (0)
User (U) Bit S Y
Audio Sampling Frequencies (KHz) 32, 44.1, 48 KHz (RX); 48 KHz (TX)
Audio Sample Word Length (bit) 16 - 24 bit (RX); 20-bit (TX)
Byte Bit Function RX TX Remarks
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MXA-6801-A2/A4The following table describes the functions of the MXA-6801-A2/A4:
Byte Bit Function RX TX Remarks
0 0 [0] Consumer use[1] Professional use
NN
NY
1 [0] Audio[1] Nonaudio
NN
YN
2- 4 (Emphasis) [000] Not indicated[100] No emphasis[110] 50/15 µs[111] CCITT J17
NNNN
YNNN
5 [0] Fs locked[1] Fs unlocked
NN
YN
6 - 7 [00] Not indicated[01] 48 KHz[10] 44.1 KHz[11] 32 KHz
NNNN
NYNN
48 KHz
1 0 - 3 (Channel mode)
[0000] Not indicated[0001] 2 channel[0010] Mono[0011] Primary/secondary[0100] Stereo[0101] to [1111]
NNNNNN
NNYNYN
Either Mono or Stereo dependent upon card setup.
4 - 7 (User bit mode)
[0000] Not-indicated[0001] 192-bit[0010] AES-18[0011] User-defined[0100] to [1111]
NNNNN
YNNNN
2 0 - 2 (Aux. bit usage)
[000] Not indicated[001] Audio data[010] Coord.[011] to [111]
NNNN
YNNN
Use of auxiliary sample bits is not defined.
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3 - 5 (Sample length)
[000] Not indicated[101] All other states
NYN
NYN
20-bit
3 0 - 7 Multichannel modes N N
4 0 - 1 AES11 sync reference N N
5 0 - 7 Unused N N
6 - 9 ASCII source ID N N
10 - 13 ASCII destination ID N N
14 - 17 Local sample address N N
18 - 21 Time-of-day address N N
22 0 - 7 C data reliability N N
23 0 - 7 CRCC N Y
Validity (V) Bit N Y V is set to zero (0)
User (U) Bit N Y U is set to zero (0)
Audio Sampling Frequencies (KHz) 48 KHz (TX)
Audio Sample Word Length (bit) 20-bit (TX)
Byte Bit Function RX TX Remarks
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Chapter 10
VFS-6801 Serial Component FrameSynchronizer Module
OverviewThe VFS-6801 is a standalone Serial Component Frame Synchronizer which provides infinite phasing relative to reference and passes all ancillary data. The reference video signals, NTSC and PAL-B, can be connected at the same time, allowing for automatic switching between 525 and 625 line standards.
Specifications and designs are subject to change without notice.
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Specifications
Serial Video Inputs
Serial Video Outputs
Item Specifications
Number 1, On board bypass relay protected
Standards SMPTE: 259M-C; 270 Mb/s, 525/625 component
Connector BNC per IEC 169-8
Impedance 75Ω
Return Loss > 18 dB to clock frequency
Signal Level 800 mV ±10%
Equalization Automatic up to: > 23 dB, 259 M-C
Item Specifications
Number 4
Standards 259M-C; 270 Mb/s, 525/625 component
Connector BNC per IEC 169-8
Impedance 75Ω
Return Loss > 18 dB to clock frequency
Signal Level 800 mV ± 10%
DC Offset 0 V ± 0.5 V
Rise and Fall Time 400-700 pS (20 to 80% amplitude)
Overshoot < 10% of amplitude (all outputs terminated)
Minimum Delay 1.6 µs
Jitter < 500 ps
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Phasing
Storage
Reference Input
Item Specifications
Resolution 37 ns
Range Infinite
Item Specifications
Number of Fields 2 (1 frame)
Data Path 10 bits
Item Specifications
Level 1 Vp-p
Signal Type Analog Composite NTSC/PAL-B
Connector BNC
Impedance 75Ω
Power Dissipation • Positive rail: 6.4 W
• Negative rail: 0.2 W
• Total: 6.6 W
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Chapter 10: VFS-6801 Serial Component Frame Synchronizer Module Installation
InstallationThe VFS-6801 module can be installed in a Leitch 6800 series, 7001 series, or FR-7000MB MIX BOX frame.
Figure 10-1. Back Module and Overlay
VFS-6801-M
SERIAL OUTPUTS
VIDEOINPUT
BYPASSPATH
GPI 525 GENLOCK 625
VFS-6801 VIDEO INPUT
SERIAL OUT
1
2
1
2
3
4
GENLOCK 625
GENLOCK 525
BYPASSPATH
GPI
This overlay is used when the VFS-6801 module is installed.
This back box is used when the VFS-6801 module is installed into either an FR-7001 series or FR-7000MB MIX BOX frame.
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OperationsThe following controls and indicators are located at the front edge of the module:
Controls• The HEX switch (SW1) allows you to select the control parameters.
(See “Switch Settings” on page 168.)
• The Adjuster two-position up/down toggle switch (SW2) allows you to adjust the parameter values.
• The Service Push button allows you to locate the position of the particular module in the network when one or multiple VFS-6801 or any other modules are linked together over a 75Ω network (DigiNet) and connected to the central controller (PC or Leitch DigiNet panel).
LED Indicators• The 625 Auto 525 - 360, 270, 143 LEDs (green) show the standard as
follows: the 525/625 LEDs indicate a detected standard if the Auto LED is On and a forced line standard if the Auto LED is Off.
• The Data Pres LEDs (green) lights to indicate that a valid source of serial digital video is present at the input of the module.
• The Service LED (amber) lights for a short time upon power up but remains off during normal operation. If the Service LED is blinking or continuously on, a hardware failure has been detected.
Jumpers• ICLK: The ICLK jumper is not used.
• OCLK: The OCLK jumper has to be installed.
• Frame ID: Frame ID is made possible by reading the silicon serial number (if installed in the RJ11 at the back of the frame). The two jumpers are shipped in the Off position from the factory and must both be in the On position to enable reading of Frame ID.
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Chapter 10: VFS-6801 Serial Component Frame Synchronizer Module Operations
SwitchesSwitches SW4 and SW5 can be used to identify the Frame ID if the silicon serial number is not installed. There are 256 possible numeric combinations provided by these switches.
Switch Settings
SW1 Switch Position
Function SW2 Down SW2 Up
0 Operational
1 Standard Forced *Auto
2 Reserved
3 Reserved
4 Forced Standard 625 *525
5 GPI *Disable Enable
6 H Phase **Decrease Increase
7 V Phase **Decrease Increase
8 Freeze *Off On
9 Freeze Field *Frame
A Field Freeze mode *Field 1 Field 2
B Hot Switch Disable *Enable
C Hot Switch mode Black *Last Field
D Forced Black *Off On
E Frame Sync mode Delay Synchronize
F Factory Recall
*Factory Preset.**Factory Preset, set to minimum delay.
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GPI
The GPIs operate in a level detect manner. See settings below:
GPI1 Freeze Off/High On/Low
GPI2 Forced Black Off/High On/Low
SW1 positions 8 and D, are overridden by enabling the associated GPI (GPI1 and GPI2).
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Chapter 11
VTS-6801 Video Timing Switcher
OverviewThe VTS-6801 is a dual digital video timing switcher. The VTS can be used as a digital line delay, a 2-by-1 clean-switch router, and as a backup video switch. When the VTS is used as a back-up video switch, on detection of loss of video or a “noisy” video input, the VTS routes the other program input source or black to the program output. The VTS can be genlocked to either program input or an external analog reference. The VTS also includes two GPIs, which can be used to control each 2-by-1 cleanswitch.
Specifications and designs are subject to change without notice.
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Chapter 11: VTS-6801 Video Timing Switcher Features
FeaturesThe VTS-6801 has the following features:
• Digital line delays
• 2 by 1 clean-switch router
• Back-up video switch
• Two serial digital inputs
• Four serial outputs
• Retiming to an external analog reference or a digital input
• GPI control for video switching
• Horizontal phase adjustment
Figure 11-1. VTS-6801 Block Diagram
Serial Interface
LineDelay
LineDelay
Serial Interface
ExternalReferenceInterface
Enable
GPI 1
PGM 1Serial Input
GPI 2
PGM 2Serial Input
External Reference
Enable
VideoProcessor
VideoProcessor
Video SyncProcessor
BlankVideo
BlankVideo
PGM 1Serial
Outputs
PGM 2Serial
Outputs
Polarity
Polarity
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Specifications
Serial Video Inputs
Serial Video Outputs
Item Specification
Operating Standard 270 Mb/s, 525/625
Number 2 program inputs
Standard SMPTE: 259 M-C; 270 Mb/s, 525/625 component
Connector BNC per IEC 169-8
Impedance 75Ω
Return Loss >18 dB to clock frequency
Signal Level 800 mV ±10%
Equalization Automatic up to 23 dB, 259 M-C
Item Specification
Number 2 pairs of program outputs
Standards 259 M-C; 270 Mb/s, 525/625 component
Connector BNC per IEC 169-8
Impedance 75Ω
Return Loss >18 dB to clock frequency
Signal Level 800 mV ± 10%
DC Offset 0 V ± 0.5 V
Rise and Fall Time 400-700 pS (20 to 80% amplitude)
Overshoot <10% of amplitude (all outputs terminated)
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Analog Reference
Load Supply
Control
OperationDiscrete LEDs at the front edge of the board provide feedback about the current configuration and state of the VTS-6801. The VTS-6801 also has a rotary hex switch which is used to select various functions, each of which can be modified with the use of the toggle switch.
Item Specification
Signal Type Composite sync or composite video
Impedance 75Ω or high impedance
Input Level Composite sync 0.2 to 4 V or composite video 0.6 to 2 V
Item Specification
VTS-6801 6.5 W, + 6.5 V (1 A), -6.5 V (1 mA)
Item Specification
GPI Input 1 and 2 Operated by connecting to 0 V or 5 V (setup dependent), input range 0 to 5 V
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LED Indicators
LED Color Indication
525 Green Force standard to 525.
Auto Green Standard is matched to that of the chosen reference.
625 Green Force standard to 625.
Lock 1 Green Input 1 video is present and locked.
Lock 2 Green Input 2 video is present and locked.
Lock Ref Green External Analog reference is present and locked.
Err 1 Red Error on Input 1 video (see Note *).
Err 2 Red Error on Input 2 video (see Note *).
Err Ref Red Error on Analog Reference (see Note 1).
Out1-1 Green Video at Output 1 is from Input 1.
Out1-2 Green Video at Output 1 is from Input 2.
Out2-1 Green Video at Output 2 is from Input 1.
Out2-2 Green Video at Output 2 is from Input 2.
Activity Green Replace serial video is enabled.
Spare 1 Green Video 1 is chosen as the reference (see Note **).
Spare 2 Green Video 2 is chosen as the reference (see Note **).
Config Err Red Hardware error, on during power up.
* Error lights for each video input and the External Analog Reference are used when there is either an error detected in the video, when the standard of the video does not match that chosen by the user, or when the input is not connected.
**When the Mode 1 and Mode 2 LEDs are both Off, the External Analog Reference is the board reference.
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Chapter 11: VTS-6801 Video Timing Switcher Specifications
Figure 11-2. Back Module Signal Connections
Figure 11-3. Location of Termination Jumper
VTS-6801
6 4
SERIALOUT 2
SERIALOUT 1
5 3 2
PGM 2 IN PGM 1 INEXT REF
GPI 1GPI 2
1
External AnalogReference Termination
High- Z
75 Ω
+ 5D
+ 5A
+ 3.3D
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Figure 11-4. Card-Edge View
Hex Switch
Toggle Switch
Out 1-2 LED (Green)
Auto LED (Green)
Out 1-1 Led (Green)Err Ref LED (Red)
Err 2 LED (Red)
Err 1 LED (Red)
Lock Ref LED (Green)
Lock 2 LED (Green)
625 LED (Green)
Out 2-1 LED (Green)
Activity LED (Green)
Spare 1 LED (Green)
525 LED (Green)
Spare 2 LED (Green)
Config Error LED (Red)
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Chapter 11: VTS-6801 Video Timing Switcher Toggle Switch and Hex Switch Operation
Toggle Switch and Hex Switch OperationAny function (switching standards or reference source), can be adjusted by using the Toggle Switch (SW2). If SW2 is mounted horizontally, it is adjusted Up/Down. If it is mounted vertically, it is adjusted Right/Left. Holding the SW2 down decreases the value of the function. Holding SW2 'up' increases the value of the function. When the maximum value of a function is reached, the value wraps around to the opposite end of the range. Turn the Hex switch, SW1, to the positions listed below to modify the value of the functions indicated.
Control FunctionsThe following table describes the control functions:
SW1Switch Position
Function
Range (adjusted using Toggle Switch SW2)
SW2Switch Position
Action Factory Settings
0 No adjustment
Up/RightDown/Left
No actionNo action
1 Lock mode 525, 625, Auto Up/RightDown/Left
Cycle UpCycle Down
Auto
2 Horizontal Delay
• 0 to 63.6 µs (525) in 37 ns steps
• 0 to 64 µs (625)in 37ns steps
Up/RightDown/Left
Increase DelayDecrease Delay
0 sec
3 Replace Serial
Enable/Disable Up/RightDown/Left
EnabledDisabled
Disabled
4 GPI 1 Enable Enable/Disable Up/RightDown/Left
EnabledDisabled
Disabled
5 GPI 2 Enable Enable/Disable Up/RightDown/Left
EnabledDisabled
Disabled
6 GPI 1 Polarity
High/Low Up/RightDown/Left
Active HighActive Low
Active Low
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7 GPI 2 Polarity
High/Low Up/RightDown/Left
Active HighActive Low
Active Low
8 PGM 1 Source Select
PGM 1 in, PGM 2 in Up/RightDown/Left
PGM 1 Out-- PGM 1 inPGM 1 Out-- PGM 2 in
PGM 1 outPGM 1 in
9 PGM 2 Source Select
PGM 1 in, PGM 2 in Up/RightDown/Left
PGM 2 Out-- PGM 2 inPGM 2 Out-- PGM 1 in
PGM 2 outPGM 2 in
A Reference Source
PGM 1 in, PGM 2 in, External Reference
Up/RightDown/Left
Cycle UpCycle Down
External Reference
B Insert Black Enable/Disable Up/RightDown/Left
Output BlackOutput Other PGM Input
Output Other PGM Input
C External Reference Type
Sync or Composite Up/RightDown/Left
Composite Sync Composite
D Test mode Do not use. Off
E Replace Serial Time Delay
0 to 15 sec in 0.5 sec Steps see Replace Serial Time Delay, LED and Time Indication.
Up/Down Increase Time Delay and Decrease Time Delay
0 Sec
F Factory Recall
Enable Up/Right Recall factory settings
SW1Switch Position
Function
Range (adjusted using Toggle Switch SW2)
SW2Switch Position
Action Factory Settings
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Chapter 11: VTS-6801 Video Timing Switcher Control Function Details
Control Function DetailsThe following table describes the control function in detail:
SwitchPosition(SW1)
Function Action Factory Settings
0 No adjustment
No parameters can be adjusted.
1 Lock mode Lock mode can be set to 525, 625, or Auto Detect. In Auto mode the system detects the standard of the chosen reference and automatically sets the system standard. Setting the Lock mode to 525 or 625 forces the system to the selected standard. If any input conflicts with the set standard, an error light will be illuminated for that particular input.
Auto
2 Horizontal Delay
This allows for horizontal timing adjustments or delays between the serial input video and the output. The adjustment is made in (37 ns) increments or decrements. Since both serial inputs are locked together horizontally, this affects both video streams.
0 sec
3 Replace Serial
When enabled the other SDI program is routed to the program output when the currently selected SDI program input signal is not lockable. If Insert Black is also enabled on breakup or loss of signal, Video Black is routed to the program output. If Replace Serial is disabled, PGM Input 1 is routed to PGM Output 1 and PGM Input 2 is routed to PGM Output 2 regardless of the state of the input signal (and regardless of the setting of Insert Black).
Disabled
4 GPI 1 Enable
When GPI 1 is enabled (and the GPI 1 input is asserted). the PGM Input 2 is switched to PGM Output 1. If the GPI 1 input is de-asserted, then PGM Input 1 is routed to PGM Output 1. If GPI 1 is disabled, then GPI 1 Input is ignored.
Disabled
5 GPI 2 Enable
If GPI Input 2 is asserted, then PGM Input 1 is switched to PGM Output 2. If GPI Input 2 is de-asserted, then PGM Input 2 is routed to PGM Output 2.
Disabled
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6 GPI 1 Polarity
When the GPI 1 Polarity is set High and the GPI 1 Input is set High (5 V), the GPI 1 Input is asserted. When the GPI 1 Polarity is set Low and the GPI 1 Input is set Low (0 V), the GPI Input 1 is also asserted. The GPI 1 Input is only active when GPI 1 is enabled.
Active Low
7 GPI 2 Polarity
Same as for GPI 2 above. Active Low
8 PGM 1 Source Select
This option controls the GPI status with the use of the switches instead of the BNC connector. The effect on the input switching is the same as when using the BNC, it is also affected by the polarity option. Corresponding outputs are listed in the table in the next section; See page 183. This option will only work if the GPI is disabled (SW1 position 4 and 5).
PGM 1 out-- PGM 1 in
9 PGM 2 Source Select
Same as for GPI 2 above. PGM 2 out-- PGM 2 in
A Reference Setting
The reference for the VTS board can be set to either External Analog Reference, PGM Input 1, or PGM Input 2, as shown below:
External Analog Reference
B Insert Black If Insert Black is enabled (and if Replace Serial is also enabled), then video black is routed to the program output on breakup or loss of signal. If Replace Serial is not enabled then PGM Input 1 is routed to PGM Output 1 and PGM Input 2 is routed to PGM Output 2.
Output other PGM input
SwitchPosition(SW1)
Function Action Factory Settings
Board Reference Mode 1 LED State
Mode 2 LED State
External Reference Off Off
PGM Input 1 On Off
PGM Input 2 Off On
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Chapter 11: VTS-6801 Video Timing Switcher Control Function Details
C External Reference Type
Sets the type of External Analog Reference connected to the VTS. If set High, then sync input is selected (4 V sync); if set Low, then composite input is selected (300 mV).
Composite
D Test mode Toggle On to enable the Test mode. If an RS-232 port is connected to J1, then debug messages will be transmitted from the VTS to the RS-232 port. Set the computer terminal interface to no stop bits, 8 bits, and 1 parity bit (N81). This mode is meant for debugging purposes and should not be accessed during normal operation.
Off
E Replace Serial Time Delay
Replace Serial Time Delay works only if Replace Serial(SW1 position 3) is enabled. If Insert Black (SW1 position B) is set for “Output other PGM Input”, the Time Delay is set to X value other than 0 sec (0 to 15 sec in 0.5 secincrements). When either output is replaced by Serial Input on PGM 1 IN or PGM 2 IN due to signal loss or noisy signal, it will take X amount of time to recover from the moment when the original Input signal is fed back to PGM 1 IN/PGM 2 IN.Example:
• When PGM 1 IN is lost, PGM 2 IN is fed to PGM 1 OUT until PGM 1 IN becomes continuously valid throughout the delay time.
• Once valid and delay time has passed, it will switch back to PGM 1 IN to PGM 1 OUT.
• The process is identical for PGM 2 IN.
0 Seconds
F Factory Recall
This function will set the VTS back to its factory settings. Toggle SW2 Up Once and Down Four times to recall the factory settings. All of the LEDs on the card-edge will turn off and then back on when the factory settings are recalled.
SwitchPosition(SW1)
Function Action Factory Settings
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Replace Serial Time Delay (SW1 – position E) LED and Time Indication
When SW1 is in position E, read the following LEDs to determine the amount of time it takes to replace serial time delay:
OUT 1-1 (LED)
OUT 1-2 (LED)
OUT 2-1 (LED)
OUT 2-2 (LED)
ACTIVITY(LED)
TIME (sec.)
OFF OFF OFF OFF ON 0.5
OFF OFF OFF ON OFF 1
OFF OFF OFF ON ON 1.5
OFF OFF ON OFF OFF 2
OFF OFF ON OFF ON 2.5
OFF OFF ON ON OFF 3
OFF OFF ON ON ON 3.5
OFF ON OFF OFF OFF 4
OFF ON OFF OFF ON 4.5
OFF ON OFF ON OFF 5
OFF ON OFF ON ON 5.5
OFF ON ON OFF OFF 6
OFF ON ON OFF ON 6.5
OFF ON ON ON OFF 7
OFF ON ON ON ON 7.5
ON OFF OFF OFF OFF 8
ON OFF OFF OFF ON 8.5
ON OFF OFF ON OFF 9
ON OFF OFF ON ON 9.5
ON OFF ON OFF OFF 10
ON OFF ON OFF ON 10.5
ON OFF ON ON OFF 11
ON OFF ON ON ON 11.5
ON ON OFF OFF OFF 12
ON ON OFF OFF ON 12.5
ON ON OFF ON OFF 13
ON ON OFF ON ON 13.5
ON ON ON OFF OFF 14
ON ON ON OFF ON 14.5
ON ON ON ON OFF 15
To view a close-up of the Card-Edge “Replace Serial Time Delay”, see Figure 11-5, on page 184.
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Chapter 11: VTS-6801 Video Timing Switcher Control Function Details
Figure 11-5. Card-Edge View of “Replace Serial Time Delay”
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Input Switching with GPI Controls Chapter 11: VTS-6801 Video Timing Switcher
Input Switching with GPI ControlsInput switching between the two sets of outputs is controlled through the use of GPI inputs 1 and 2. Each GPI control determines the switching of one video input. The effect of a high or a low from each GPI control is also affected by the polarity option of SW1, positions 6 and 7.
The following tables describe the actions and effects when the polarity is active high, the opposite of this is true for a polarity of active low. If the GPI signal is low, then the input is passed straight through to its appropriate output. In contrast to this, if the GPI signal is high, then the input is switched to the opposite output. Shown below are the possible combinations of GPI controls and the input which appears at each output.
Polarity Active High
Polarity Active Low
Polarity = Active High GPI 1 = lowGPI 2 = low
GPI 1 = highGPI 2 = low
GPI 1 = lowGPI 2 = high
GPI 1 = highGPI 2 = high
Video appearing at Output 1 Input1 Input 2 Input 1 Input 2
Video appearing at Output 2 Input 2 Input 2 Input 1 Input 1
Polarity = Active Low GPI 1 = lowGPI 2 = low
GPI 1 = highGPI 2 = low
GPI 1 = lowGPI 2 = high
GPI 1 = highGPI 2 = high
Video appearing at Output 1 Input 2 Input 1 Input 2 Input 1
Video appearing at Output 2 Input 1 Input 1 Input 2 Input 2
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Chapter 11: VTS-6801 Video Timing Switcher General Issues
General IssuesIf the VTS is used as a back-up switcher or as a clean-switch router, the External Analog Reference should be used as the board reference.
If the VTS is used as a back-up switcher, a certain amount of noise on the PGM inputs will be rejected. The PGM output will switch back and forth between the primary video input and the secondary video input, if the primary signal is intermittently noisy.
The VTS processes the video sync information on the PGM inputs to prevent the PGM outputs from failing under moderately noisy conditions.
If the PGM inputs contain illegal data during the active picture area, the VTS will legalize the video data.
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Applications Chapter 11: VTS-6801 Video Timing Switcher
Applications
Clean-Switch SettingsThe following drawing shows the Clean-Switch settings:
Figure 11-6. 2-by-1 Clean-Switch
2- by -1 Clean-Switch Settings
Both PGM inputs and the External Reference should be set to the same standard. PGM IN #1 and PGM IN #2 should be within ± 1/2 line of the external reference.
Program In # 2
GPI # 1
GPI # 2Ref In
Program Out # 2
Program Out # 1Program In # 1
Switch Setting
Replace OFF
Insert Black OFF
GPI #1 Enable ON
GPI #2 Enable ON
GPI #1 Polarity HIGH or LOW
GPI #2 Polarity HIGH or LOW
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Chapter 11: VTS-6801 Video Timing Switcher Applications
Digital Adjusted Line Delay
Figure 11-7. Digital Adjusted Line Delay
Program In # 1
Program In # 2
VariableDelay
# 1
VariableDelay
# 2
Program Out # 2
Program Out # 2
Ref In
Switch Setting
Replace OFF
Insert Black OFF
Use the horizontal delay control to delay the video relative to the external analog reference.
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Backup Video Switch
Figure 11-8. Backup of Video Switch
To replace the “Primary” input with the “Secondary” input, set the VTS as shown in the table below:
Program In # 1 “Primary”
Program Out# 2 “Secondary”
AutoChangeLogic
Ref In
Program Out # 1 “Primary”
Program In# 2 “Secondary”
Switch Setting
Replace ON
Insert Black OFF: to replace PGM with less noisy inputON: to replace PGM with black
Lock to External Analog Reference Mode 1 and Mode 2 LEDs are OFF.
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Chapter 11: VTS-6801 Video Timing Switcher Applications
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Appendix A
Embedding Modes GraphicDescription
OverviewThis chapter describes the Embedded modes listed below.:
• Left Mode Justify
• Follow Mode Part 1
• Follow Mode Part 2
• Overwrite Mode Part 1
• Overwrite Mode Part 2
• Strip ADS and Left Justify
• Strip ADS and Clean
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Appendix A: Embedding Modes Graphic Description Left Mode Justify
Left Mode JustifyThis mode embeds audio after EAV. The audio is embedded as specified group number (EMBED_GROUP), and any existing auxiliary data packets (ADP) not using the ADS area used by the audio groups is kept (if an ADP is located just after the EAV, it is overwritten with the new embedded audio group).
Fragments may remain in the ADS if the audio group partially overwrites an existing ADP. This is not a problem for most De-Muxes, but may cause odd behavior in some equipment.
EMBED_GROUP will not be embedded and an error will be reported if the group specified already exists in the ADS.
Figure A-1. Left Justification Mode
EAV
EAV
EAV
ADS before embedding
ADS after embedding GROUP 1
GROUP 1
ADS before embedding
other auxilliary data A
EAV
ADS after embedding GROUP1remaining otherauxilliary data A
(garbage)GROUP 1
other auxilliary data B
other auxilliary data B
EAV
EAV
ADS before embedding
ADS after attempting to embedding GROUP 1: ERROR is returned
Pre-existing GROUP 1
Pre-existing GROUP 1
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Follow Mode Part 1 Appendix A: Embedding Modes Graphic Description
Follow Mode Part 1Follow mode starts embedding after the last embedded audio group. The audio is embedded as the group specified (EMBED_GROUP). It will not destroy any ADPs already present in the ADS.
Existing packets in the ADS will be left justified.
If the pre-existing ADDs are not left justified (and do not follow each other within a 3 or 4 of clocks), the embedder will report an error and not embed.
Figure A-2. Follow Embedding Mode Part 1
EMBED_GROUP will not be embedded and an error will be reported if the group specified already exists in the ADS.
EAV
EAV
EAV
ADS before embedding
ADS after embedding GROUP 1
GROUP 1
ADS before embedding
other auxilliary dataA
EAV
ADS after embedding GROUP 1
EAV
EAV
ADS before embedding
ADS after attempting to embedding GROUP 1: ERROR is returned
Pre-existing GROUP 1
Pre-existing GROUP 1
other auxilliary dataB
other auxilliary dataA
other auxilliary dataB GROUP 1
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Appendix A: Embedding Modes Graphic Description Follow Mode Part 2
Follow Mode Part 2The graphic below details the “Follow Embedding Mode Part 2”.
Figure A-3. Follow Embedding Mode Part 2
EAV
EAV
EAV
ADS before embedding
ADS after embedding GROUP 2
GROUP 1
ADS before embedding
EAV
ADS after embedding GROUP 1
EAV
EAV
ADS before embedding
ADS after attempting to embedding GROUP 1: ERROR is returned
other auxilliarydata
GROUP 1
GROUP 1
GROUP 2
GROUP 2
GROUP 2
other auxilliarydata
other auxilliarydata
other auxilliarydata
other auxilliarydata
other auxilliarydata
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Overwrite Mode Part 1 Appendix A: Embedding Modes Graphic Description
Overwrite Mode Part 1Overwrite specifies the groups you want overwritten, and which groups you want to embed audio data onto.
If the specified audio group to overwrite (OVERWRITE_GROUP) exists, the embedder will embed the group as EMBED_GROUP. EMBED_GROUP and OVERWRITE_GROUP do not need to have the same value.
If the specified overwrite group does not exist, the audio group is not embedded, and an error is reported.
Audio groups are embedded with the same sample distribution as the overwritten groups.
Figure A-4. Overwrite Embedding Mode Part 1
EAV
EAV
EAV
ADS before embedding
ADS after attempting to embed GROUP 1: returns ERROR
ADS before embedding
other auxilliary dataA
EAV
EAV
EAV
ADS before embedding
ADS after embedding GROUP 1 (with overwrite group specified as group 1)
GROUP 1
Pre-existing GROUP 1
other auxilliary dataB
other auxilliary dataA
other auxilliary dataB
ADS after attempting to embed GROUP 1: returns ERROR
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Appendix A: Embedding Modes Graphic Description Overwrite Mode Part 2
Overwrite Mode Part 2The graphic below details the “Overwrite Embedding mode Part 2”.
Figure A-5. Overwrite Embedding Mode Part 2
EAV
EAV
EAV
ADS before embedding
ADS after embedding GROUP 2 (with overwrite group specified as GROUP 1)
ADS before embedding
EAV
EAV
EAV
ADS before embedding
ADS after embedding GROUP 1 (with overwrite group specified as GROUP 1)
GROUP 1
Pre-existing GROUP 1
ADS after embedding GROUP 4 (with overwrite group specified as GROUP 2)
Pre-existing GROUP 1 Pre-existing GROUP 2
Pre-existing GROUP 2GROUP 2
bad condition since there are now two group 2's in the ADS
Pre-existing GROUP 1 Pre-existing GROUP 2 Pre-existing GROUP 3
GROUP 4 Pre-existing GROUP 3Pre-existing GROUP 1
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Strip ADS and Left Justify Appendix A: Embedding Modes Graphic Description
Strip ADS and Left JustifyThe entire ADS region is stripped clean, and the audio groups are embedded left justified. Nothing previously existing in the ADS is kept.
Figure A-6. Strip ADS and Left Justify
EAV
EAV
EAV
ADS before embedding
ADS after embedding GROUP 1
ADS before embedding
other auxilliary data A
EAV
other auxilliary data B
ADS after embedding GROUP 1
Group 1
GROUP 1
EAV
ADS before embedding
ADS after embedding GROUP 1
Group 1EAV
Pre-Existing GROUP 1
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Appendix A: Embedding Modes Graphic Description Strip ADS and Clean
Strip ADS and CleanStrips the ADS region clean.
Figure A-7. Strip ADS and Clean
EAV
EAV
EAV
ADS before embedding
ADS after
ADS before embedding
other auxilliary data A
EAV
other auxilliary data B
ADS after
EAV
ADS before embedding
ADS after
EAV
Pre-Existing GROUP 1
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Warranty
Leitch Incorporated ("Leitch") warrants to each original end-user purchaser or licensee (each, a "Customer") of hardware or software products manufactured by Leitch (each, a "Product"), or of non-warranty repair or other services provided by Leitch ("Services"), that each such Product and all such Services will be free from defects in materials and workmanship that adversely affect the Product's performance or the Services' intended purpose for a period (the "Warranty Period") of:
One year for server hardware Products;Two years for non-server, and Desktop hardware Products;Ninety days for parts, assemblies and supplies to support hardware Products previously sold to Customers;Ninety days for media of software licensed separately from Leitch hardware Products, and encoding created by Leitch as physically affixed on or embedded in such media; The same period as the hardware Product warranty for media of software licensed as an integral part of any Leitch hardware Product, and encoding created by Leitch as physically affixed on or embedded in such mediaNinety days for Services.
Please refer to the current "Leitch Limited Warranty Policy" for a complete description of the warranty provided, including important exclusions and limitations as well as procedures for obtaining warranty service.