Power Supply Consolidation

UltraScale Architecture PCB Design User Guide (UG583)

Document ID
UG583
Release Date
2023-11-14
Revision
1.27 English

Powering 1.8V VCCO and VCCAUX from a common PCB plane is allowed in Kintex UltraScale and Virtex UltraScale FPGA designs. However, careful consideration must be given to power supply noise—in particular, any noise on the VCCO rail should not violate the recommended operating condition range for the VCCAUX supply. See the data sheet for these requirements.