AR #21246 - Virtex-4 RocketIO - Why are the on-package 0.22uF bypass capacitors not included for FX MGT packages?

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Virtex-4 RocketIO - Why are the on-package 0.22uF bypass capacitors not included for FX MGT packages?

AR#	21246
Part	Virtex-4 Family
Last Modified	2005-04-20 00:00:00.0
Status	Active
Keywords	MGT, RocketIO, Virtex-4, Packages, FX

Description

Keywords: MGT, RocketIO, Virtex-4, Packages, FX

Urgency: Standard

General Description:
Virtex II Pro packages had 0.22uF bypass capacitors for the MGTs. Why were these not included for Virtex-4 FX packages?

Solution

Due to limited space in the package, the MGTs in V4FX do not have the 0.22uF bypass capacitors.