DLPS210 March 2021 DLP651NE
Figure 10-1 shows an example of the HSSI signal pair routing.
Signals listed in Table 10-4 are specified for data rate operation at up to 3.2 Gbps. Minimize the layer changes for these signals. Minimize the number of vias. Avoid sharp turns and layer switching while minimizing the lengths. When layer changes are necessary, place GND vias around the signal vias to provide a signal return path. The distance from one pair of differential signals to another must be at least 2 times the distance within the pair.
|SIGNAL NAME||REFERENCE SIGNAL||ROUTING SPECIFICATION||UNIT|
|Intra-pair P||Intra-pair N||±0.01||inch|
|SIGNAL NAME||Constraints||Routing Layers|
|Intra-pair (P to N)|
Matched to 0.01 inches
Matched to +/- 0.25 inches
|Layers 3, 8|