[SI-LIST] Re: Ground plane voids under Tip/Ring
- From: Mellberg Hans <htmguy@xxxxxxxxx>
- To: whizplayer@xxxxxxxxx, cpad@xxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Thu, 10 Jan 2002 09:52:00 -0800 (PST)
All planes are voided except the island of chassis
ground. Otherwise, you are still subjecting your
traces to possibly noisy planes.
--- Bob Patel <whizplayer@xxxxxxxxx> wrote:
>
> Hi! From all the responses I have received so far, I
> conclude:
> 1) The interface from magnetics to connector need to
> be void of ground and power planes.
> 2)Refill this void portion with chassis ground which
> is etched away from the board ground plane by at
> least 40mils.
> Question:
> This chassis ground which has to be etched, can I
> etch it on all the planes or should I just use TOP
> and Bottom layer of the board for this chassis
> ground.
>
> Thanks
>
=====
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