Answers Database

XC2000/XC3000/XC4000/XC5200: About decoupling capacitors for FPGAs


Record #114

Problem Title:
XC2000/XC3000/XC4000/XC5200:  About decoupling capacitors for FPGAs


Problem Description:
Keywords: Capacitance, Capacitors, decoupling, FPGAs

Urgency: Standard


Description
Decoupling Capacitor Values for 2K/3K/4K FPGAs


Solution 1:

The recommended capacitance value and number of capacitors for
decoupling XC2000, XC3000 and XC4000 devices is a 0.1uF capacitor
for each VCC  on the LCA. The decoupling capacitors should be
connected as close as possible to the GROUND and VCC planes.






End of Record #114