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John Larkin  
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 More options Jul 5, 11:53 pm
Newsgroups: sci.electronics.design
From: John Larkin <jjlar...@highNOTlandTHIStechnologyPART.com>
Date: Sat, 05 Jul 2008 11:53:46 -0700
Local: Sat, Jul 5 2008 11:53 pm
Subject: Re: PCB power planes?
On Sat, 05 Jul 2008 20:32:36 +0200, Martin Griffith

<mart_in_med...@yah00.es> wrote:
>Just been looking for ideas
>http://www.gennum.com/video/pdf/32469DOC.pdf
>and I havent done any multi layer boards, is fig 5.3 on P24 correct?

>martin

2.1.1 is insane. They can't make up their mind whether to use 0r
resistors or beads, so they are still guessing.

Splitting grounds is usually a bad idea. Except when it's a terrible
idea.

Fig 5.3 looks so weird to me that I assume PDF rendering errors. Does
anyone else see huge black triangles?

2.1.2 suggests sequencing or possible latchup problems. Be careful
here; get more info maybe.

John


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