Hi Bill, On 05/07/2012 05:12 AM, Bill Hawkins wrote:
Thanks for the analysis, Magnus.
Always happy to contribute.
A few other time constants might be interesting - When a step change is made to the control voltage or current, how long does it take for the oscillator to settle down to a new value? Is it instantaneous compared to a second?
It depends on the rubidium FLL bandwidth. For OCXO it is much quicker.
Do different components in different oscillators affect the settling time?
For rubidiums, yes. The FLL bandwidth will have such a "lag" effect until the slaved OXXO is back on track.
It is not useful to make the next change before the last one is complete, at least for sampled systems. Using counters filters the change rather than taking a sample.
If you flip back and forth, then it makes sense because your phase deviations will be less.
You should however consider it when doing the stability analysis. Cheers, Magnus _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
