Note the phrase "as a side note." ;-) No way should you connect a TTL output to a 232 output.
Ahem (cough cough) as a side note, the 232 jitter is so bad you can see it on a storage scope. It varies from chip to chip, but a microsecond RMS isn't out of the ballpark. ------Original Message------ From: Chris Albertson To: [email protected] To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Electronics Question Sent: Jul 27, 2011 2:35 PM On Wed, Jul 27, 2011 at 2:09 PM, <[email protected]> wrote: > I don't follow exactly what you are doing here, but 232 receivers are > generally TTL compatible.... I think the OP has a TTL signal and wants to by-pass the MAX rs232->ttl chip. So talk about timing problems are moot as the OP intends not to use the chip. His question is if he can connect his TTL signal to the TTL output of the MAX chip. I said as a practical matter "no". He is best to remove the chip. Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
