Issue link: https://resources.pcb.cadence.com/i/1532922
6. Set Stub Length to 20 mils (0.508 mm). A shorter stub length reduces signal reflections, which is critical for maintaining signal integrity in high-speed designs. Depending on your design's signal propagation and rise times, stub lengths of 10, 20, or 30 mils may be acceptable. 7. Set the Max Exposed Length to 1000 mils (25.400 mm). This value helps control the amount of potential electromagnetic interference (EMI) onto or emitted from the exposed traces. Adjust the Max Exposed Length based on specific design requirements to ensure optimal performance. 8. Set the Max Parallel value by clicking the cell. This will open up a new window. 9. Set the Length value in row 1 to 1500 mils (38.100 mm) and the Distance value in row 1 to say, 5 mils (0.127 mm), then click OK. Setting a limit to the distance that traces can run closely in parallel to each other limits crosstalk. TIP: Crosstalk occurs when electromagnetic interference from one trace (the aggressor) affects a nearby trace (the victim), leading to unwanted noise and potential signal integrity issues in high-speed PCB designs. The amount of crosstalk increases with the parallel length of the traces, the distance between them, and the signal frequency, making it crucial to minimize parallel runs and maintain adequate spacing between traces to reduce this effect. 13 www.cadence.com OrCAD X Constraint Management Guide