[time-nuts] Optimal oscillator topology for diffrent frequency range
Richard (Rick) Karlquist
richard at karlquist.com
Mon Feb 6 07:13:20 EST 2017
I would say the 2 stage "Driscoll" oscillator is the
way to go. I have had good luck with it up to 100 MHz.
The first stage has the crystal in series with the
emitter, but is otherwise a grounded emitter stage.
The second stage is in cascode as a grounded base.
The important operating condition is that only
the second stage limits. First publications on
it were in the early 1970's (search Michael Driscoll).
Rick Karlquist N6RK
On 2/6/2017 1:06 AM, Yeti Yetos wrote:
> Good morning,
> What's the optimal oscillator topology for low phase noise (low frequency
> noise and phase noise floor) for 25Mhz/50Mhz/100Mhz frequency range.?
> Best regards, Rafal
> 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