3.2.1.1 Differential Traces
(Ask a Question)A well-designed differential trace must have the following qualities:
- No Mismatch in impedance
- Insertion loss and return loss
- Skew within the differential traces
The following points must be considered while routing the high-speed differential traces to meet the previous qualities.
- The traces must be routed with tight length matching (skew) within differential traces. Asymmetry in length causes conversion of differential signals in Common Mode Signals.
- The differential pair must be routed such that the skew within the differential pairs is less than 5 mils. The length match must be used by matching techniques.