Hey cowboybob,
I'm looking at the stratum 3 class as a good pairing for ToF measurement circuits. More then the initial start-up time I was looking to find the time it takes for the clock to fully settle and restart to a stable oscillation after the oven has already achieved a stable temperature, if that makes sense?
The big part of crystal oscillator start-up that throws me off is the random AC signal that starts the piezoelectric effect off.
How large a window does that part of the start-up sequence get. when I read that "X" XTAL's start-up time is between 134ms-187ms what are the governing factors of that differential?
I know that does not apply only to OCXO's but it is the main question I am challenged with.