[time-nuts] Yet another GPSDO project.

[Jim Harman]

Tobias,

If your controller has a 10 bit ADC available, I would suggest using the
TIC circuit in Lars's GPSDO. For a 10 MHz input, it needs only a 74HC390
divide by 10, a 74HC4046 phase detector, plus 1 diode, 1 capacitor, and 2
resistors to produce a 1 nsec resolution TIC. You get a fresh TIC value
every second and the phase detector has a lock-in range of 1 usec.

. <http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com>


-- 

--Jim Harman