Select Versal ACAPs contain dedicated remote voltage sense pins for VCCINT and its associated ground return. They provide the closest look at the die possible.
The following figure shows recommended sense line routing for ACAPs with dedicated sense pins.
- Place inline 0Ω resistors close to the ACAP:
- Resistors are required to ensure sense lines are routed as traces and not dropped to the plane.
- Route sense lines as 50Ω loosely coupled differential
transmission lines:
- Ground is required to sense true differential between power and ground.
Figure 1. Dedicated Sense Pin Routing
