Date: Thu Dec 07 2000 - 05:40:01 PST
George, I was wondering if you ever got an answer to your question on the SI
In my opinion, the differential signal fidelity shouldn't be affected by
changing from a coupled pair to an uncoupled pair as long as the differential
impedance stays constant. The coupled line would be less susceptible to
crosstalk from an aggressor trace, however. A tighter coupled pair would
have better performance in the presence of crosstalk (higher common mode to
differential mode crosstalk ratio) than a lightly coupled pair.
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