introducing atlas 2014 pcb insertion loss test system april 2014 v14:04 copyright © polar...
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Introducing Atlas 2014PCB Insertion loss test systemApril 2014 V14:04
Copyright © Polar Instruments 2014
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New Features
Copyright © Polar Instruments 2014
Featuring support for SPP, SET2SEIL & SET2DIL
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New Features
Copyright © Polar Instruments 2014
Atlas 2014 Introduces:
• Support for SPP testing
• Integrated environment for SPP / SET2DIL / ImpedanceShortens training time.
• Built in multiple waveform view
• Support for 20GHz, 30GHz and 50GHz sampling modules
• New ergonomic ESD safe probe housings for SET2DIL test
• Snapshot – for archiving and recreation of test results
• Compliant with IPC-TM-650 2.5.5.12
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New Features
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Support for SPP insertion loss measurement technique
Integrated waveform view display – allows user to drill down for more detailed waveform analysis.
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Drill down view
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SPP Impedance pre screening
Built in waveform view allows user display expanded view at any time.
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SPP Impedance pre screening
SPP Pre-screening from 14:04 on supports Launch Point Extrapolation.
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New Features
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New cursor function dynamic readout
New cursor function provides linked readout of all active displayed results.
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New Features
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New cursor function dynamic readout
Cursor readout of all trace values, limits and Launch Point Extrapolation.
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New Features
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SPP Test from / Test to – autoset limits
Test from / test to limits auto set in SPP mode.
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New Features
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Atlas SPP:
• An SPP test comprises:
• A series of thorough impedance pre-screening tests
• (Test for line taper / impedance imbalance)
• Above tests performed on both a long and short line in both forward and backward directions.
• Followed by:
• Alpha (loss) / Beta (phase) tests / Calculation of Effective Er
• Compliant with IPC-TM-650 2.5.5.12
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New Features
Copyright © Polar Instruments 2014
Atlas SPP:
• The following sequence of screens step through a typical SPP test:
• Pre-screening – Waveform windowing – Alpha (loss) and Beta (phase) measurements.
• The very first slide of the sequence explains the coupon layout and typical connectors used.
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New Features
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Typical SPP coupon connectors and terminology
Short line forward connectors.
Legend denoting length and impedance of short line. in this case 4cm (40mm) and 85 Ohms differential.
Short line backward connectors.
Long line backward connectors.
Long line forward connectors.
All connectors typically Molex surface mount SMA. Each connector fitted to the board with screws sized to the thickness of the coupon
Legend denoting length and impedance of long line. in this case 11cm (110mm) and 85 Ohms differential.
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Step 1 Pre screen impedance long line forward direction
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Step 2 Pre screen impedance long line backward
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New Features
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Step 3 Pre screen impedance short line forward
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New Features
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Step 4 Pre screen impedance short line backward
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Step 5 SPP test long line
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Step 6 SPP test short line
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Processed result screen
Click on any individual result for detail view
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New Features
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Pre-Screen Z differential impedance test
Differential impedance measured forward / backward and delta impedance test
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New Features
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Pre-Screen Odd impedance
Short & long line odd impedance and balance test
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New Features
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Even signal impedance pre screen
Even signal impedance and balance test
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Pre-Screen one side of line pair (single ended)
Single ended pre-screen of one side of differential pair.
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Pre-Screen second side of line pair (single ended)
Single ended pre-screen of second side of differential pair. Note cursor display with link to graph series and test limits.
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Raw Time domain transmission impulse waveforms
Raw and unprocessed impulse waveforms as uploaded from the sampling oscilloscope prior to mathematical conditioning for FFT processing. Note the reduction in impulse height on the long line impulse owing to signal losses. Hence the name “Short pulse propagation”
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New Features
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Windowed TDT Impulse response display
Mathematically processed TDT waveform data per IPC-TM-650 prior to FFT extraction of loss and phase information.
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New Features
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Spectra display
The spectra display is an indication of how much energy remains in the short and long line at any given frequency. The upper frequency of the measurement is limited by the signal power being large enough compared to the noise in the system for the math to “dig out” the ratio of power in the long line to that in the short line..
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New Features
Copyright © Polar Instruments 2014
Alpha (insertion loss display)
Alpha* is the measured insertion loss. This is similar to the “loss” graph seen on the Polar Si9000e. SPP denotes loss in dB/cm (10mm). Pass fail criteria are set in the test editor according to the limits laid down by the OEM. (*Alpha is the attenuation of the transmission line when driven and terminated by a matched load)
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New Features
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Beta (phase shift in Radians per cm)
Beta* (the phase shift) displays the phase shift of the transmission line (in Radians per 10mm). Phase angle increases with frequency and is directly related to propagation velocity (Vp = C/Sq root effective Er). Phase display is “unwrapped” displaying the constant increase in phase angle. (In the Si9000e you will see phase displayed in a “wrapped” sawtooth format which is a convenient way of displaying an ever increasing angle on a graph scale). As with Alpha, Beta denotes the phase shift of the line when driven and terminated with a matched impedance.
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New Features
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Effective dielectric constant
The ability to extract the phase along with an accurate knowledge of the line length gives the ability to calculate the effective dielectric constant at any given frequency. This result shows the typical characteristic of PCB laminates with a higher Er at low frequencies – gently sloping to a much smaller reduction in effective Er as the frequency rises.
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New Features
Copyright © Polar Instruments 2014
Atlas SPP:
• The previous sequence has walked you through the testing process for SPP
• The following two slides show how simple it is to setup an SPP test with Atlas 2014.
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SPP Pretest setup
Simple yet flexible configuration for SPP test and pretest.
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SPP Pretest setup
Autoset Test From / Test To.
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SPP insertion loss setup
Auto line fit for Alpha regression – new from 14:04.
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New Features
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Atlas 2014 Featuring support for SPP SET2SEIL & SET2DIL
Impulse forming networks for SPP test..
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New Features
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Ergonomic ESD safe probe housing for SET2DIL GGB probe
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New Features
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Atlas test snapshot facility
Tests may be saved and archived as “Snapshot files” complete with full waveform data. Snapshots may be recovered at any time for future reference.
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New Features
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Atlas 800 SET2DIL & SPP Protection unit
Intelligent protection of sampling heads in the production environment
Active management of probe discharge state and connectivity.
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Sample SPP & SET2DIL deskew package
Set of 5 “known good” SET2DIL coupons for initial SET2DIL deskew
Sample SPP coupon.
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Supporting product for insertion loss:
• Si9000e
• Speedstack Si
• CGen SiSupports SET2DIL & SPP coupons
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Atlas 2014
Supporting:
• SPP
• SET2SEIL
• Bidirectional SET2DIL
• Impedance
• Compatible with Tektronix DSA8300 / DSA8200 / TDS8000and 20GHz, 30GHz or 50GHz TDR sampling heads.
• Operates under XP / Windows 7 / Windows 8
Thank you
Copyright © Polar Instruments 2013
For more information:
Contact Polar now: Phone
USA / Canada / MexicoKen Taylor ( 503) 356 5270
Asia / PacificTerence Chew +65 6873 7470
Japanjapan@polarinstruments.asia +81 45 339 0155
UK / EuropeNeil Chamberlain +44 23 9226 9113
Germany / Austria / Switzerland Hermann Reischer +43 7666 20041-0
www.polarinstruments.com
Copyright © Polar Instruments 2013
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