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AR# 11991

System ACE - What is the recommended capacitor bypassing for the System ACE CF controller chip?

Description

General Description: 

For the System ACE CF controller chip, what is the recommended number/placement of bypass capacitors?

Solution

1. One 0.1 uF capacitor per Vccl pin, placed as close as possible ( < 1cm). 

 

2. One 0.1 uF capacitor per Vcch pin, placed as close as possible ( < 1cm). 

 

3. Four 4.7 uF capacitors for lower frequency bypassing for Vccl (placed within a few cm). 

 

4. Two 4.7 uF capacitors for lower frequency bypassing for Vcch (placed within a few cm.. 

 

Since the controller chip is a TQ surface-mount part, placing the high-frequency caps directly underneath the package on the underside of the board is ideal and will save board space.

AR# 11991
Date Created 08/29/2007
Last Updated 05/08/2014
Status Archive
Type General Article