JH> 2/ Use a spread of capacitor values so that you swap one or two deep
JH> resonant nulls for a swag of shallower ones spread across the spectrum.

I found this to be interesting.  I've just about finished reading "Digital
Design for Interference Specifications" David l. Terrell, R.Kenneth
Keenan, 1997,  Published by NewNes ISBN 0-7506-7282-X.

The authors seem to take the opposite position that (bulk capacitance aside)
using the same value bypass caps lowers the overall ESR,  which (they
say) results in a lower overall spectrum.  And that mixing (for example)
.1uf and .01uf values is a bad idea.  In any case,  it was an interesting
read.

I'd be curious if anyone else has views on this subject,  one way or the other..

(The book also has some layer stackup advice.)



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