From: Mark Randol ([email protected])
Date: Mon Jan 10 2000 - 14:53:46 PST
Chris Heard wrote:
>
> Here's another...
>
> Use a ground trace in between signal traces to reduce crosstalk....
That CAN work, but it has to really be "ground", not just a piece
of metal that might have a "ground" connection somewhere.
Otherwise, you've just made 2 2X+ larger value capacitances in
series rather than 2 capacitances to "ground" as you intended.
So you've actually made things worse.
That is, 2.1*C0 || 2.1*C0 = 1.05*C0.
Properly stitched with vias, it can work quite well at
RF/microwave frequencies.
-- Mark Randol, RF Measurements Engineer Motorola SPS, Inc. M/S EL381 2100 E. Elliot Road Tempe, AZ 85284 (480)413-8052 Voice (480)413-3455 FAX [email protected]**** To unsubscribe from si-list: send e-mail to [email protected]. In the BODY of message put: UNSUBSCRIBE si-list, for more help, put HELP. si-list archives are accessible at http://www.qsl.net/wb6tpu/si-list ****
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