Installing OrCAD 9.2

(1) Disable Anti-virus programs (2) Run the program setup.exe (3) Choose: Standalone Licensing

Install Product on Standalone Computer (4) Enter the key Codes: B F I K (5) Enter the authorization code: 12345 (6) Click YES to override all .dll files and extensions (7) Finish installation

(8) Run PDXOrCAD.exe from the CD under the Crack\ folder (9) Brows for C:\Program Files\Orcad in the tab shown (10) Click Apply then ByeBye

Drawing Circuits (Capture CIS) A. Start a new Project

(1) Run “Capture CIS” from the Start menu (2) Run: File New Project

i. Write a Name ii. Choose Analog or Mixed A/D iii. Brows a location under My Documents\ iv. Click Next v. Choose “Create a blank project”

(3) A blank page named “SCHEMATIC1” is created B. Add Libraries

(1) Click on the blank sheet (2) Run: Place Part or click on the icon on the right panel (3) Click Add Library (4) You need, at least, the following libraries from the directory:

C:\Program Files\Orcad\Capture\Library\PSpice\ analog.olb for resistors, capacitors, and coils source.olb for voltage and current sources diode.olb for diodes bipolar.olb for BJT transistors

C. Draw Circuits

(1) Place Part or click

i. VSIN from Source Library ii. 1N4376 from Diode Library iii. R from Analog Library

(2) Press Esc after placing a part to place other types (3) Press “R” while placing a part to rotate it (4) Double click on the part value to edit their values VSIN: VOFF=0, VAMPL=1, FREQ=1000

(5) Place Ground or click and add “0/SOURCE”

(6) Place Wire or click

V1

FREQ = 1000VAMPL = 1VOFF = 0

0

R1

1k

D1

1N43761 2

VV

D. Simulations On the nodes you need to simulate, run:

(1) PSpice Markers Voltage Level or click (2) Place these probes on every node you want (3) Run PSpice New Simulation Profile (4) Write a Name and click Create (5) In the simulation window (Analysis tab) choose:

Analysis Type: Time Domain (Transient) Options: General Settings Run to Time: 5ms

(6) Run the simulation by: PSpice Run or click or press F11 (7) To change the simulation end time, click PSpice Edit Simulation Profile (8) To make a smoother simulation, assign the “Maximum Step Size” = 1us

Exercise: Build the following amplifier and check that its voltage gain is about -100 V/V.

V

R6

1k

0

V2

15

V

0

R3

10kC1

10u

R4

5k

V4

FREQ = 100kVAMPL = 1mVOFF = 0

Q2

Q2N2222A

R8

10

R5

1k

C3

10u

R7

2.1k

C2

10u

PCB Layout (Layout Plus) A. Inserting Test Points When producing the PCB layout, all the input voltage and current sources including the ground point will not be part of the components placed in the layout. In fact, we need to place some pins in the layout to later connect to them from outside the PCB. Thus, we need to add these ports or test points in the design before generating the layout netlist:

(1) Inside the CIS, add the library C:\Program Files\Orcad\Capture\Library\Connector.olb

(2) Place a “TEST POINT” from this library on every input or output port of your design.

(3) Note: a warning will be given when you try to simulate your design, since Spice does not recognize this component. However, the simulation will run correctly.

B. Generate Layout Netlist

(1) Inside the CIS after you are done with the schematic, click on the project window to highlight it

(2) Under the Design Resources, highlight your project xxx.dsn object (3) Now, run Tools Create Netlist (4) In the new window, select the Tab “Layout” and press OK (5) Under the Output object, a file with extension .mnl is generated

C. Layout Technology

(1) Start the program: “Layout Plus” (2) Run File New (3) Choose the default technology file under:

C:\Program Files\Orcad\Layout_Plus\Data\DEFALUT.TCH (4) You will be asked to load the .mnl netlist you generated, brows it (5) Now save this work under the same project directory (6) The components and their connections will be loaded one by one

D. Footprints Some of the components already have their footprints assigned in the original library, e.g. all PSpice libraries. For the TEST POINTS, you might need to assign footprints to them. If any component has no footprint assigned, this window will appear:

(1) Click “Link existing footprint to component” button (2) You will have different libraries and different footprints exist (3) For TEST POINTS, choose LAYOUT library (4) Then choose “TP” form the list below and click OK (5) Repeat this procedure for every unassigned component Resistors & Capacitors Footprints (6) For resistors, highlight the component and right click to edit its property to assign

the AX/R05 footprint (the ¼ Watt) from the Axial library TM_AXIAL (7) For ceramic capacitors, select from the TM_CYLND for cylindrical capacitors or

TM_CAP for ceramic capacitors (8) Always print the footprint for your layout on a paper and match physically with

your components before final PCB printing E. Assigning Layers Not all layers are needed when routing the PCB. Thus, you should only keep the following layers: TOP, BOTTOM, and DRILL. To do so:

(1) Run: Tools Layer Select From Spreadsheet (2) In the shown table, double click on the Layer Type for the unwanted layers and

choose Unused. (3) Make sure the layers TOP and BOTTOM are of type Routing and the DRILL is of

type Drill (4) Close the table (5) Run: Options System Settings and choose Millimeters as the Display Units

F. Define the Routing Area You need to define the area where you want to draw your PCB:

(1) Select the Yellow layer named Global Layer (2) Run: Tools Obstacle Select Tool (3) Start drawing the area you want and watch for its size on the dimension scale on

the bottom of the screen (4) Once you finish drawing the PCB area, press ESC to exit the mode

E. Placing & Routing

(1) To move and place the components, make sure this button is pressed, or run: Tools Component Select Tool

(2) Click the component and drag it then click again to place it. (3) Press “R” while dragging the component to rotate it. (4) Run: Auto Autoroute Board to automatically route the PCB (5) Zoom in to view the layout (6) You may replace the component again, but first Unroute the board.

F. Gerber Outputs To be able to print your layout, this layout needs to be produced in Gerber format. Before running the process, make sure that the Place Grid size is 2.0 instead of 1.27:

(1) Click: Options System Settings (2) Change Place Gird to: 2.0 (3) Click: Auto Run Post Processor

Other details will be announced when printing your project with other teams’ layouts in one board.

File import LMD then locate the board press All+ start