[SI-LIST] Impedance & crosstalk calculation
- From: Bob Patel <whizplayer@xxxxxxxxx>
- To: si_list <si-list@xxxxxxxxxxxxx>
- Date: Thu, 10 Jan 2002 10:15:57 -0800 (PST)
Hi! I had a question as to how should the impedance be
calculated for a balanced pair over no copper area.
Also, how to estimate the crosstalk for balanced
signals over non-copper area. In case of T1/E1/E3 the
Rx signals are very weak any any coupling of noise
will introduce BER so as a rule of thumb I have kept
the separation between Tx and Rx lines 3 times the
spacing between the +/-of balanced pair. Is this
sufficient. Is there any formula to calculate this
crosstalk value?
Thanks in advance
Bob
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