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Eeyore  
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 More options Jul 6 2008, 12:55 am
Newsgroups: sci.electronics.design
From: Eeyore <rabbitsfriendsandrelati...@hotmail.com>
Date: Sat, 05 Jul 2008 20:55:46 +0100
Local: Sun, Jul 6 2008 12:55 am
Subject: Re: PCB power planes?

John Larkin wrote:
> Splitting grounds is usually a bad idea. Except when it's a terrible
> idea.

Except when it's audio of course and you don'y want digital return
currents you can hear in the audio ground. In which case pkysically
separated but carefully linked planes are the way to go in order to
direct the currents where you want them to go rather than randomly
anywhere.

Graham


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