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From: "Hemon Dey"
References: <3DB611D8.C62D54F9@earthlink.net> <3DB78E6F.F4E0BA72@earthlink.net> <3DBEAC2F.712E17AC@mmm.com.DELETETHIS>
Subject: Re: Chip Ferrites
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
Date: Wed, 30 Oct 2002 10:05:39 +1300
NNTP-Posting-Date: Wed, 30 Oct 2002 10:05:36 NZDT
Excellent website I must say. Our RS232 is not located that close to the out
going port, but the ferrite beads are right on that entrance. The PCB is 4
layers with a middle ground plane, should be alright. Even if the RS232
transceiver chip is close to the edge of the board, the UART signals coming
up to the transceiver are still switching at semi-high frequency (115kHZ)
... so I think the placement of the ferrites are improtant, more so than the
RS232 transceiver chip, do you think?
"Roy McCammon" wrote in message
> Hemon Dey wrote:
> > So I take it then nobody knows much about ferrites??? only about
> you might look at
> Thank you for reading and or replying
> If you are one in a million, there are 6000 people just like
> Local optimization almost never yields global optimization.
> Opinions expressed herein are my own and may not represent those of my
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