[SI-LIST] : CRIETERIA FOR CHOOSING VALUE OF Z0

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From: Chandan (chandan_career@yahoo.com)
Date: Tue May 22 2001 - 10:04:33 PDT


Hi Everybody,

On all the motherboards that I have designed, the
chipset vendors specify the characteristic impedance
of the traces of the various signals involved. For
example, Intel specifies a value of 60 ohms for their
440BX chipset.
In the absence of such recommendations, on what basis
do I choose the value of characteristic impedance for
my traces?

Thanks,
Chandan

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