[SI-LIST] Re: SI effects for Stackup with GND plane but no VCC plane?

  • From: sreekanth soman <sreekanths18@xxxxxxxxx>
  • To: cuong@xxxxxxxxxxxxx
  • Date: Fri, 2 Nov 2012 12:10:43 +0530

Hi,
Is the configuration a microstrip or stripline ?
If there is only one GND reference for the signal layer, it will be
microstrip and so the far end crosstalk will be more.

-- 
Thanks and Regards,
Sreekanth

On 2 November 2012 05:07, Cuong Nguyen <cuong@xxxxxxxxxxxxx> wrote:

> Experts,
>
>
> A customer of mine is looking into doing SI analysis including extraction
> of
> nets out to S-params and Spice models.
>
> their stackup only has GND plane and no VCC plane (other than thick
> traces).
>
>
>
> Does this "asymmetric" setup presents any potential issues?  Inaccuracies?
> Etc..?  when doing SI analysis for
>
> both Single-ended (I don't think so) and Differential (maybe?) signals?
>
>
>
> The kind of analysis they're thinking of doing is basic SI quality,
> Crosstalk, eye-diagrams, and loss analysis (S-param).
>
> Their stackup is not complicated but does have analog components.
>
>
>
> === === === === === ===
>
> Cuong Nguyen
>
> Field Application Engineer
>
>
>
>
>
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