[time-nuts] Advantages of differential oscillator structures?

Bob Camp lists at rtty.us
Sat Aug 10 13:25:03 UTC 2013


Hi

It's certainly a good low power approach - if you can fabricate it in silicon. I'd hate to try to do it with discrete devices. The broad band phase noise isn't going to be anything great, but that's likely not something they are worrying about in their system. 

Bob

On Aug 10, 2013, at 9:19 AM, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:

> In message <39433FF7-BA50-4E0C-9F11-992AEDCD5511 at rtty.us>, Bob Camp writes:
> 
>> A couple of observations:
> 
> But you have to admit:
> 
> 5) Getting into low ppm's at 1 microampere is kind of impressive...
> 
> There's nothing about phase-noise, so I suspect that's where
> the trade-off is ?
> 
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe    
> Never attribute to malice what can adequately be explained by incompetence.




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