OrCAD PCB Designer SigXplorer


Here are the steps involved in simulation with SigXplorer

1. Open the design in Allegro PCB Design and then click File -> Change Editor -> Select OrCAD signal Explorer. Ignore the warnings it shows.
2. Add the required ibs file in current directory where you have the .brd file.
3. Click on Tools -> Setup Advisor. This will basically go through the process of Setting up Cross Section, assign DC Nets and assign Models to devices.
4. In the Corss Section - make sure that the power and ground planes are assigned properly. Check the Single ended impedances of the traces for required length.
5.In the final Step Click on the SI Model Assignment.
6. In the next window select the device, that you wish to assign Model. Then Cick Preferenced at the bottom. Select the IBIS Model and click Assign. Check and ignore warnings.
7.Do the same for other parts as well.
8. Click Tools -> Topology Extract - > Now select the net on the Layout that you wish to simulate. The click view.
9. It will open up a new window with the topology. You can now give stimulus and proceed with simulation.