White Papers
Simulating FPGA Power Integrity Using S-Parameter Models
The purpose of a Power Distribution Network (PDN) is to provide power to electrical devices in a system. Each devicein a system not only has its own power requirements for its internal operation, but also a requirement for the input voltage fluctuation of that power rail. For Xilinx Kintex™-7 and Virtex®-7 FPGAs, the analog power rails have an input voltage fluctuation requirement of not more than 10 mV peak-to-peak from the 10 kHz to the 80 MHz frequency range. The self- generated voltage fluctuation on the power rails is a function of frequency and can be described by Ohm's Law: Voltage (frequency) = Current (frequency) * Self-Impedance (frequency).
To see the entire IP Doc from Hany Fahmy and Colin Warwick of Agilent Technologies, Inc. and Jack Carrel, Ray Anderson, Harry Fu, and Romi Mayder of Xilinx, Inc., Xilinx, please log in or register.
