[time-nuts] TCVCXO Adjustment
Hal Murray
hmurray at megapathdsl.net
Wed Apr 11 05:09:24 EDT 2018
wayne.holder at gmail.com said:
> Since the TCVCXO includes a voltage control input, my plan is to also add a
> 12-Bit Digital-to-Analog Converter ...
What's the temperature stability of the D/A?
How does that compare with a 10 turn pot? I remember a comment about pots
aging. It was somewhat recently. I don't remember the details. I think it
was something like the wiper wore a small groove which made it hard to make
tiny adjustments. I don't know how long it takes for the groove to form.
A possible option is to just measure the osc and do the adjustment in
software.
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