Atilla,
Isn't the VE2ZAZ circuit functionally equivalent to your example 3? Granted, he's not picking the 10 millionth transition and checking its phase difference to the reference, but I've only got a 1PPS reference with a 1uS or so jitter from pulse to pulse. Bert is averaging over 16 seconds, and creating a PWM signal to drive an integrator (simulating a DAC), which will drive a Trimble 34310-T. And like I mentioned earlier, I just like the way Bert did it. It has a kind of elegance that appeals to my inner hacker. =) Bob - AE6RV ----- Original Message ----- > From: Attila Kinali <[email protected]> > To: Bob Stewart <[email protected]>; Discussion of precise time and frequency > measurement <[email protected]> > Cc: > Sent: Thursday, June 13, 2013 3:39 PM > Subject: Re: [time-nuts] New to list and GPSDO questions snip > [3] Describes how to use a clock synchronizer to build a GPSDO. Probably > not the easiest and not the cheapest way, but definitly one with a very > low parts count. snip > [3] The AD9548 as a GPS Disciplined Stratum 2 Clock, by Gentile, 2009 > http://www.analog.com/static/imported-files/application_notes/AN-1002.pdf _______________________________________________ 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.
