Hi The stability with two active devices will be worse than with one. That's true of tc, ADEV, and phase noise.
Buffering out of the circuit is problematic for a precision application, so that's likely to add to the noise as well. It's a reasonable way to do a cheap oscillator. It's probably not a lot worse than some inverter feedback clocks. It's not a great approach for a TimeNuts stable part. Bob On Aug 10, 2013, at 12:03 PM, Magnus Danielson <mag...@rubidium.dyndns.org> wrote: > On 08/10/2013 05:55 PM, Bob Camp wrote: >> Hi >> >> Looking at the picture of the die, I suspect their radio has a VCO on it >> that they lock up through a (noisy) low frequency PLL. That would mean they >> really don't care a lot about phase noise of the reference. > Agree. But I was arguing about looking at it outside of their system > limits and see if it could be practical approach otherwise. Then their > choice of transistor geometrics etc. is irrelevant. So, given that, > could it be potentially interesting? > > 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. _______________________________________________ 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.
