Tom, Divide the 10 MHz down to 2 MHz in the usual way, then multiply by 8 with a cascade of three analog freq doublers separated by fairly narrow bandpass filters. Caveats: Would need four filters total along the path to get rid of unwanted frequency components, gain distributed along the path to keep the signal level high enough to satisfy the doublers, and might suffer excessive phase drift due to temperature changes of the filters (and probably to a lesser extent) the doublers themselves. You didn't mention phase stability requirements...
Freq doublers based on mixers or on full-wave rectification have the pleasant property of having *most* of their output power in the proper harmonic order, but require sinusoidal drives to work. An unfiltered digital drive signal won't suffice here. Dana On Sat, Sep 29, 2018 at 10:58 PM Tom Van Baak <t...@leapsecond.com> wrote: > What's a clever, simple, reliable (pick 2 of 3) way to get 16 MHz out of > 10 MHz? Low phase noise isn't a big requirement and jitter doesn't need to > be sub-nanosecond. The main requirement is perfect cycle count accuracy. > This is for driving a 16 MHz microcontroller from a 10 MHz Rb/Cs/GPSDO. 10 > MHz input is likely sine; 16 MHz output is 3v3 or 5v CMOS. > > Thanks, > /tvb > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.