RE: [SI-LIST] : Ferrite Beads

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From: Dilpreet Saini (DSAINI@altera.com)
Date: Thu Nov 16 2000 - 09:26:05 PST


Hi Marc,
        Can you please comment a little bit more on Why would a ferrite in series with GND cause the ground bounce.

regards,
Dilpreet

-----Original Message-----
From: marcgodbout@auranetinc.com [mailto:marcgodbout@auranetinc.com]
Sent: Thursday, November 16, 2000 4:41 AM
To: Dilpreet Saini; si-list@silab.eng.sun.com
Subject: RE: [SI-LIST] : Ferrite Beads

From experience, a ferrite in series with GND will cause a ground bounce on
the board. If you're using DC coupled signals to other circuits in the
system, these signals will see their reference point change.

-Marc Godbout

> -----Original Message-----
> From: Dilpreet Saini [mailto:DSAINI@altera.com]
> Sent: Wednesday, November 15, 2000 4:45 PM
> To: SI List (E-mail)
> Subject: [SI-LIST] : Ferrite Beads
>
>
> Hi all,
> In the past I have used ferrite beads for transient and
> parasitic suppression of the supply (VCC) coming into the
> board. So far I have never used ferrite beads in series with
> the GND trace/plane. I was wondering do any of you have any
> experience using ferrite beads in that scenario.
> Thanks in advance for your help.
>
> regards,
> Dilpreet
 

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