Re: [SI-LIST] : Another plane bypass question...

About this list Date view Thread view Subject view Author view

From: Barry Ma (barry_ma@altavista.com)
Date: Fri Sep 29 2000 - 08:28:36 PDT


On Thu, 28 September 2000, Bryan Ackerly wrote:

> The board has a number of 100nF and 10nF capacitors spread
> across the board and a couple of tantalums for bulk charge.

...........[edited by BM]
 
> I can go to 0.1mm (4mil) plane spacing without impacting cost. Without
> extra copper fills this should give about 16nF of plane capacitance.

Suggestion:
(1) If you have 16 nF plane cap, you may try to get rid of 10nF decaps.
(2) The parallel resonance problem in real life may not be as serious as in
    simulation ...

Thanks.
Best Regards,
Barry Ma <bma@anritsu.com>
ANRITSU www.anritsu.com
Morgan Hill, CA 95037
Tel. 408-778-2000 x 4465
_______________________________________________________________________

Free Unlimited Internet Access! Try it now!
http://www.zdnet.com/downloads/altavista/index.html

_______________________________________________________________________

**** To unsubscribe from si-list or si-list-digest: send e-mail to
majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE
si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu
****


About this list Date view Thread view Subject view Author view

This archive was generated by hypermail 2b29 : Tue May 08 2001 - 14:29:37 PDT