Re: gEDA-user: Connecting AGND with GND

[Dave McGuire <mcguire@xxxxxxxxxxxxx>]

On Jun 17, 2008, at 6:49 PM, Steve Meier wrote:
> Take a look at your data sheet for the ADC often these devices will
> require both analog and digiital ground and often they will  
> recomend you
> connect the two grounds close to them. Second I try to keep the  
> digital
> ground away from the analog sections. Third try to avoid traces
> (requiring impedence matching) crossing over moats.
>
> I have been using surface mount power inductors to connect the two
> grounds. e.g coilcraft  SLC7530

   This is an interesting idea; do they serve as chokes to keep noise  
in one ground system from crossing over into the other?

           -Dave
>


-- 
Dave McGuire
Port Charlotte, FL




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