[SI-LIST] : Decoupling caps selection

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From: Dilpreet Saini (DSAINI@altera.com)
Date: Fri Oct 27 2000 - 15:14:48 PDT


Hi all,
        I was wondering if the selection of the decoupling capacitor of a circuit is MAINLY governed by the edge rates of the switching signals or by the frequency of their switching. I believe the answer is later cause all the documentation that I have seen on the dcoupling cap selection so far do not have any mention of the edge rates. Most of the capacitor manufacturer have "Impedance Vs Frequency" charts in their specs/catalogs. I am assuming that the Frequency that they are referring to is the frequency of operation of the circuit. Any ideas/comments are greatly appreciated.

Dilpreet

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