On Sun, Sep 30, 2018 at 5:58 AM 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
I would square the sine (like HP single BJT or double BJT squarers), divide by 5 with any 74XX290 or xx390, then multiply by two three times using 74XX86 XORs with one input delayed by two inverters. You would need to play with the last inverters delay if your microcontroller needs a symmetric clock Frank _______________________________________________ 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.
