Larger caps can still have relatively large impedance. I wouldn't try to bypass my 2GHz radios with a 0.1uF. Critical also is the routing. I try hard to have the power come to the pad and then away from the pad, not a "T" connection that runs down to the pad. Little things like that can put you in the category of "Is that thing on?" at emissions testing. :) (two layers, no enclosure, no ferrites, shields or other voodoo)
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Re: Bypass capacitors (was: noise problem)
2012-10-14 by David V