[SI-LIST] Re: Diff.Pairs

  • From: Martyn Gaudion <martyn.gaudion@xxxxxxxxxxxxxxxxxxxx>
  • To: jflamm@xxxxxxxxxxxxx
  • Date: Thu, 02 Oct 2003 20:57:44 +0100

Hi Juergen,
You can find lots of  application notes
especially with respect to process variation
on differential pairs here:


www.polarinstruments.com/support/cits/cits_index.html

In particular this one may be of interest:


How measured impedance may vary from field solver calculations when
using woven glass reinforced 
<http://www.polarinstruments.com/support/cits/AP139.html>laminates

www.polarinstruments.com/support/cits/AP139.html


And this note:

Copper thickness, edge coupled lines and
characteristic 
<http://www.polarinstruments.com/support/cits/AP151.html>impedance


www.polarinstruments.com/support/cits/AP151.html



Hope this helps....


Kind regards
Martyn Gaudion
www.polarinstruments.com
T: +44 1481 253081
F: +44 1481 252476
M: +44 7710 522748
E: martyn@xxxxxxxxxxxxxxxxxxxx

============================================
  Controlled Impedance & Signal integrity tools
  for the Printed circuit fabrication industry
============================================






At 19:00 02/10/2003, you wrote:
>I am seeking help in finding enlightenment regarding electrical 
>performance pros and cons and how manufacturing tolerances play a role 
>when comparing side by side and tandem differential pairs. I'd appreciate 
>your opinion, experience, analysis, pointers to papers and articels, etc.
>
>In return, I would offer to share a summary of the finding/discoveries 
>with interested parties.
>
>Thanks
>
>Juergen
>
>
>
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