[time-nuts] time-nuts Digest, Vol 29, Issue 86
Grant Hodgson
grant at ghengineering.co.uk
Fri Dec 29 12:33:54 UTC 2006
Stephan
--snip--
>
>> I prefer phase detectors which is more continous such as mixers, XOR or
>> S-R style phase detectors.
>
> In this case the phase detector is purely digital so I guess the loop filter
> could also be a purely digital IIR filter (or something?) I guess the only
> limitation is the frequency at which the digital system could run.
>
Going back through this thread, it seems you want to lock a 100MHz OCXO
to a 10MHz reference, which is itself disciplined to PPS. By far the
easiest solution would be to discipline the 100MHz OCXO directly to the
PPS - this will have negligible impact on the OCXO's phase noise and is
a simple, reliable method - the Luis Cupido design will work very well
for example, and there are other designs.
regards
Grant
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