This walk-through demonstrates how to define differential pairs in the schematic. This can also be completed during the PCB layout. After you complete the topic, you will be able to:
Define differential pairs both manually and automatically
To follow along with this tutorial, continue with your design from Capture Walk-through 7 or use the included design file, CAPTURE TUTORIAL 8_DIFFERENTIAL PAIRS.DSN under the ‘materials’ tab.
In the project hierarchy, select the design file.
Select Tools > Create Differential Pair from the menu.
Select either the manual or automatic generation below:
Manual
Select D+ Net.
Click the > button to select.
Select D- Net.
Click the > button to select.
Assign DPD as the Diff Pair Name.
Click Create.
Automatic
Select Auto Setup.
Assign DP as the Prefix.
Assign + to + Filter.
Assign – to – Filter.
Click on the window to generate the differential pair.