[SI-LIST] Q on Trace Width and Jitter for Diff Pairs

  • From: "Grasso, Charles" <Charles.Grasso@xxxxxxxxxxxx>
  • To: "'si-list@xxxxxxxxxxxxx'" <si-list@xxxxxxxxxxxxx>
  • Date: Tue, 5 Jul 2005 13:38:46 -0600

Greetings!
 
I am stuck on understanding a contradiction - perhaps someone could
"unstick" me?
It is understood that (at high frequencies) the dielectric losses in a pwb
dominates the
losses of a transmission line. However, I have read in various publications
that 
increasing the trace widths improves the jitter performance of a high speed
serial link.
I would have thought that as a trace width increases the effects of the
dielectrics
would be exacerbated.
 
How does increasing the width of a trace improve the DJ of the link?
 
Best Regards
Charles Grasso
Senior Compliance Engineer
Echostar Communications Corp.
Tel:  303-706-5467
Fax: 303-799-6222
Cell: 303-204-2974
Pager/Short Message:  3032042974@xxxxxxxx <mailto:3032042974@xxxxxxxx> 
Email: charles.grasso@xxxxxxxxxxxx; <mailto:charles.grasso@xxxxxxxxxxxx; >
Email Alternate: chasgrasso@xxxxxxxx <mailto:chasgrasso@xxxxxxxx> 
 
 


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