[SI-LIST] Re: High speed signal-return path
- From: olaney@xxxxxxxx
- To: raja.anand@xxxxxxxxx
- Date: Sat, 22 Sep 2007 04:51:30 -0700
Every power plane is a ground plane for high frequency purposes. There
should be no material difference between the two implementations. If
there is, something is really wrong with the power supply bypassing
strategy. The choice between stripline and microstrip is generally
driven by the particulars of the board layout. There is no definitive
choice of one over the other based on general principles, only as
circumstances dictate.
Orin Laney
On Sat, 22 Sep 2007 11:12:19 +0530 "Raja Anand" <raja.anand@xxxxxxxxx>
writes:
> Hi All,
> For high speed differential signals (3.125Gbps ), is it really
> required to
> take these signals between Gnd Planes. Which option should I go for
> from
> below if my stack up is symmetrical?
>
> Option1:
> L4 - Power
> L5 - Signal
> L6 ? GND
>
> Option2:
> L4 - GND
> L5 - Signal
> L6 ? GND
>
> Regards,
> Raja
>
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