Hi
Backing off a bit, there are a *lot* of different OCXO’s out there. Some will
hold a few
ppb for months in terms of aging. Others will age that much in a day. Some will
be good
to < 0.01 ppb due to room temp changes. Others will move fractions of a ppm.
On top of that, some OCXO’s have (se
So, Just a few numbers to look at.
I'm currently starting at a GPSDO output. The DAC is a PWM DAC with 20
bit resolution. Note the previous replies in regards to the PWM. Also
note, PWM is used here as the DAC in the micro was so poor it was not
usable to drive the EFC lead.
The DAC covers t
