[time-nuts] 10 MHz -> 16 MHz

Bruce Griffiths bruce.griffiths at xtra.co.nz
Sun Sep 30 02:35:34 EDT 2018

Full wave rectify the sinewave input, extract the 8th Harmonic with a passive filter.
Drive the input of a divide by 5 circuit via a suitable impedance converter network.
Could even use a CMOS 74XX74 flipflop plus a few passive components as the divider.


> On 30 September 2018 at 16:57 Tom Van Baak <tvb at 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
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