[SI-LIST] Re: XAUI

Actually, neither.  Coupling doesn't have any benefit.  If you can spread
the traces out so there is no coupling, you've got the best geometry.  Real
world, you can't do this and route a PCB, so route side by side with as
much separation as your topology will allow.  Then adjust trace widths to
give you 100 ohm diff impedance. 

Lee W. Ritchey
Speeding Edge
P. O. Box 2194
Glen Ellen, CA 95442
Phone- 707-568-3983
FAX-    707-568-3504

I just used the energy it took to be angry to write some blues.
Count Basie


> [Original Message]
> From: Ravindra Johari <Ravindra.Johari@xxxxxxxxxxxxxxxxxx>
> To: <si-list@xxxxxxxxxxxxx>
> Date: 12/22/2005 11:19:44 AM
> Subject: [SI-LIST] XAUI
>
>  
> Hello Gurus!!
>
>  
>
> Which is a better coupling for running a differential pair at XAUI Speeds
> i.e at 3 Gbps..
>
>  
>
> Is it Edge coupled stripline or Broadside coupled stripline..
>
> What kind of constraints can I face with these?
>
>  
>
> Thanks!
>
> Ravi
>
>  
>
>
>
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