[time-nuts] PLL/GPSDO/etc learning resources for mere mortals

Jim Harman j99harman at gmail.com
Tue Sep 4 12:28:00 EDT 2018


> The challenge seems to me to be

how to temperature stabilize the entire DAC chain without putting it all in
an oven

Hi Forrest,

Generally you don't have to temperature stabilize the DAC because it is
inside the phase-locked control loop and the loop will adjust for
temperature dependencies, just as it adjusts for drift and temperature
dependencies in the oscillator. You will want your phase detector to be
reasonably temperature stable however.

In the time-nuts archives you will find posts from Lars Walenius and myself
with schematics and code for Arduino-based GPSDOs which you might want to
study.


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