Data Sheet

10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc]
https://reference.digilentinc.com/reference/programmers/jtag-smt3/reference-manual 11/16
Maintain a differential impedance of 90 Ohms between the DP and DM signals.
Keep DP and DM trace lengths within 50 mils of each other.
Minimize DP and DM signal trace length. Keeping the trace length below 3 inches is recommended.
Mechanical Information
General USB Signal Routing Guidelines