Using Differential Pairs in Allegro PCB Editor
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3. In the Add Column form, select an Attribute Type of Pre-defined.
4. From the list, select DIFF_IMPEDANCE_RULE. Make sure the Create Actual /
Margin bundle box is checked and select OK.
5. Enter values in the Target and +/- Tol columns.
6. Right-click on the DP1 differential pair and select Analyze.
