Figure 21-8. Switching Reference Planes; Figure 21-9. Reference Plane Switch Using Via - Nvidia Jetson AGX Xavier Series Design Manual

When signal changes plane:

Try not to change the reference plane, if possible.
•
When a reference plane switches to different power rail, a stitching capacitor is
•
required (Figure 21-8).
When the same ground and power reference plane changes to a different layer, a
•
stitching via is required (Figure 21-9).
Figure 21-8. Switching Reference Planes
Figure 21-9. Reference Plane Switch Using Via
Jetson AGX Xavier Series Product
Transmission Line Primer
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