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From: [EMAIL PROTECTED] [mailto:geda-user-
[EMAIL PROTECTED] On Behalf Of DJ Delorie
Sent: Sunday, January 21, 2007 7:59 PM
To: geda-user@moria.seul.org
Subject: gEDA-user: rs232 ferrite size?
What's a good size ferrite to use on an rs232 line? I've got a spot
for a set
On Mon, 2007-01-22 at 09:30 -0800, Ostheller, Joel A. wrote:
I can't imagine why you would want one on either TX or RX... I have
never had any issues with RS232 on any board I have designed. My biggest
RS232 issue is usually finding a computer that has a serial port
grumble stupid laptops and
One part we use a lot is a Murata BLM18AG102SN1. They are available
from DigiKey. This part has a fairly high resistive component,
chosen specifically for our use mainly as a power supply filter. It
would also be appropriate for slower data signals like RS-232. If
you were concerned
You worried about bad bits or overvoltage? An EMI ferrite isn't going
to have much effect on either for a relatively high Z interface like
RS-232.
The serial port will only be rarely used, and the chip controlling it
can be replaced. The lines that will be in continuous use have
stronger
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