Hi Even with an integer divide, it’s still going to toss in a full cycle of the TCXO from time to time. It will be an integer, except when it is not ….
Bob > On Apr 4, 2016, at 7:27 PM, Attila Kinali <[email protected]> wrote: > > On Mon, 4 Apr 2016 17:56:29 -0400 > Bob Camp <[email protected]> wrote: > >> The variable frequency output on the uBlox (and other) GPS receivers >> has come up many times in the past. >> If you dig into the archives you can find quite a bit of data on the >> (lack of) performance of the high(er) frequency outputs from the various GPS >> modules. They all depend on cycle add / drop at the frequency of their free >> running TCXO. Regardless of the output frequency, that will put a *lot* of >> jitter into the output. > > That's why you should put the output frequency of the ublox modules > to an integer divisor of 24MHz. Ie 8MHz works but not 10MHz. > > Attila Kinali > > -- > It is upon moral qualities that a society is ultimately founded. All > the prosperity and technological sophistication in the world is of no > use without that foundation. > -- Miss Matheson, The Diamond Age, Neil Stephenson > _______________________________________________ > 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.
