[SI-LIST] impedance relation with frequency...

  • From: karan bagga <kbagga31@xxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Wed, 17 Sep 2003 02:24:29 -0700 (PDT)

Hi
 
From the telegraphic equations on Transmision lines it seems the impedance of 
the Trace varies with frequency.
 
In my design specifications it is specified that my trace should be on (25 +/- 
10%) Ohms.
How will I do it ? How will I do these kind of analysis?
 
The frequency of the signal is high and also the rise time is significantly low.
Will FFT be of some help here ?
 
Regards
Karan.



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