[sdiy] split ground plane

[Tim Ressel]

There are many good articles on the web covering this topic. Just search for split ground plane. Here is one:

http://www.planetanalog.com/features/analog/showArticle.jhtml?articleID=192201974

--TimR


--- On Mon, 7/7/08, Daniel Kruszyna <dan at krue.net> wrote:

> From: Daniel Kruszyna <dan at krue.net>
> Subject: [sdiy] split ground plane
> To: synth-diy at dropmix.xs4all.nl
> Date: Monday, July 7, 2008, 7:32 AM
> I'm working on a pcb with separate analog and digital
> ground planes.
> Is there any special method I should use when routing
> signals from
> one side of the pcb to the other? For example, I have an
> r2r on the
> digital side whose output I want to connect to a
> level-shifting opamp
> on the analog side. Is it ok to just route the signals
> between the
> two planes? Or does this method create a loop on the return
> path?
> 
> In the past, I've only dealt with chips that have
> separate analog
> and digital supplies, which do any necessary interfacing
> internally.
> 
> -- Daniel
> 
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