OrCAD X Resources

OrCAD X High-Speed Digital Design Guide Part 2

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5. In this example, however, you can also directly apply a net schedule (see below). Note: Depending on your use case, you can use either constraint sets or a specific rule application as needed, like in this example. However, please use constraint sets as often as possible to catch the majority of cases first before applying net-specific one-off rules. Using constraint sets modularizes and streamlines your PCB design constraint process and makes you more efficient. The constraint set method also reduces the likelihood of errors and forgotten constraints. Benefit: Improves signal integrity and timing by ensuring critical connections are made efficiently. Let's return to the Electrical rules where we can set the constraint sets (see below). At this point, you want to set your rules for parameters like Stub Length, Max Exposed Length, choose any Layer Sets you may have imported into the Constraint Manager from other engineers/designers, and choose to Verify Schedule. 10 www.cadence.com OrCAD X High-Speed Digital Design Guide

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