[SI-LIST] Re: query
- From: ronald miller <ron@xxxxxxxxxxx>
- To: aditya@xxxxxxxxxxxxxxx
- Date: Fri, 10 Aug 2007 12:40:44 -0700
Isolation should always be done up front in the design process, keeping
sensitive circuitry away
from switching and power circuits.
However, one should also consider the coupling of the power and
switching circuit grounds and
power rails, and the path that these currents take. If the sensitive
circuits share the same power and
ground, moating can steer the high power currents away from the
sensitive circuits.
Ron
Aditya Chandra wrote:
>Moats are also used for splitting two different power signals in a plane (AGND
>and DGND supposedly) but same purpose is solved by simple isolation then why
>do we use moat for power plane splitting?
>
>What is the advantage of moat for power plane splitting?
>
>
>Regards
>Aditya
>
>Email: aditya@xxxxxxxxxxxxxxx
>
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--
Ronald Miller
Ghz Data, Signal Integrity Consulting
7721 Sunset Ave.
Newark CA 94560
tel 510-793-4744
cell 510-377-9380
fax 510-742-6686
www.ghzdata.com
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