[SI-LIST] Re: Multiple voltages clearance/seperation in a single plane
- From: "DAVID CUTHBERT" <telegrapher9@xxxxxxxxx>
- To: "Arun Kumar P N" <arun@xxxxxxxxxxxxxxxx>
- Date: Sat, 30 Aug 2008 08:29:01 -0600
Arun,
a simple simulation using SONNET LITE (it's free) or one of the other field
solver programs will tell you. First you need to decide how much coupling
between planes your circuit can tolerate. Then design to that. If you want
an estimate, I'd say separate the plane edges by 4X the plane-to-plane
spacing. And place the planes close together - 5 mils or closer.
Dave Cuthbert
On Sat, Aug 30, 2008 at 3:42 AM, Arun Kumar P N <arun@xxxxxxxxxxxxxxxx>wrote:
> Hi All,
>
>
> I have a VCC plane with multiple voltages in it - the Processor core and
> I/O
> voltages, etc
>
>
>
> How do I decide the clearance between the different voltage planes?
>
>
>
> Thank you,
>
>
>
> Regards
>
> Arun
>
>
>
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