[time-nuts] Advantages of differential oscillator structures?

Bob Camp lists at rtty.us
Sat Aug 10 14:34:33 EDT 2013


Hi

Any bets on weather or not they have actually designed a 12.8 MHz multivibrator that injection locks to the crystal? Pretty hard with discrete parts, but not out of the question with silicon. You'd have to get their spice (or what ever) files to figure it out ... 

Bob

On Aug 10, 2013, at 12:03 PM, Magnus Danielson <magnus at 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 at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.



More information about the time-nuts mailing list