Hi I have no real idea how they distinguish their "high gain front end" from a comparator. Judging from the way it was rattled off, I suspect there's a patent application floating around somewhere.
Bob -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David Sent: Wednesday, April 17, 2013 9:24 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] LTC6957 Low Phase Noise Buffer/Driver On Wed, 17 Apr 2013 07:26:46 -0400, Bob Camp <[email protected]> wrote: >On Apr 16, 2013, at 9:51 PM, Richard (Rick) Karlquist <[email protected]> wrote: > >> On 4/14/2013 7:48 AM, Brian Davis wrote: >>> Not sure if it's already been mentioned, but Linear has introduced a new >>> part that looks interesting : >>> >>> LTC6957 Low Phase Noise Buffer/Driver >>> http://www.linear.com/product/LTC6957-1 >> >> This is VERY interesting, especially the low noise PECL output. I have >> never seen any ECL device ever come close to that noise level. >> It would be interesting to see how they did that. >> > >The description from their tech guys is "Very high gain front end. It's a saturating amp rather than a comparator." What criteria do they use to distinguish the two? Application? Differential inputs and outputs? I am not surprised that it would have lower jitter than ECL if the later lacks an independent external reference. I have been looking into low jitter triggers for sampling systems recently and will probably end up using a discrete differential amplifier driving ECL logic. _______________________________________________ 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. _______________________________________________ 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.
