Capture Walk-through 8: Differential Pairs

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.

Open in New Window

  1. In the project hierarchy, select the design file. 
Graphical user interface, text, application

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  1. Select Tools > Create Differential Pair from the menu. 
  1. Select either the manual or automatic generation below: 


Graphical user interface, application

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  1. Select D+ Net. 
  1. Click the > button to select. 
  1. Select D- Net. 
  1. Click the > button to select. 
  1. Assign DPD as the Diff Pair Name.  
  1. Click Create


Graphical user interface, application, Word

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  1. Select Auto Setup
  1. Assign DP as the Prefix
  1. Assign + to + Filter
  1. Assign  to – Filter
  1. Click on the window to generate the differential pair. 
  1. Select Create 
  2. Close the differential pair window. 
EMA Design Automation