Re: [SI-LIST] : Trace Impedance Selection

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From: Doug Brooks (doug@eskimo.com)
Date: Thu May 04 2000 - 14:49:32 PDT


Scott,

Many good points, thanks.

But see two questions:

>A lower Z0 causes greater mismatch to long package stub sections
>on multidrop
>lines and can accentuate resonance effects at high edge rates.

Would you expand a little on this one?

>I lower Z0 trace will generally have lower coupling to neighboring
>nets.

Why? (i assume you are talking about cross talk, here)

Thanks

Doug

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Doug Brooks, President doug@eskimo.com
UltraCAD Design, Inc. http://www.ultracad.com

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