From: Doug McKean (firstname.lastname@example.org)
Date: Wed Sep 13 2000 - 14:08:13 PDT
Boris Yost wrote:
> Dear list members:
> I'm looking at a design right now--portions of which were inspired by an
> "EMI expert". Specifically, instead of ordinary decoupling practice, there
> are filters with a capacitor on each side of a ferrite
> bead...individually...for each and every device on the board. Almost all of
> the devices have "CMOS" outputs--the output goes to the high rail. Almost
> all of the devices are fully static logic. The system is a digital video
> display, it has one input, and the board output doesn't leave the box. 80%
> of the board, and everything doing real work, operates synchronously to the
> input clock.
> Is this "decoupling" scheme overkill, useful, or a disaster waiting to
Without knowing anything other than
what you've presented here - yes.
How much overkill? Don't know.
I'm assuming this thing is an FCC Class B device.
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