2 points:
First I do not get copies of my own mail... strange .
Second a complete treatment including the results is in
http://ieeexplore.ieee.org/document/7546729/
These results are superior to other publication , and the paper is
complete. Probably only very few do a complete
Am 06.02.2017 um 14:08 schrieb Richard (Rick) Karlquist:
Agreed, for low phase noise FLOOR, it is imperative to
take the signal out through the crystal. However, for
close in noise (say ADEV at t=1), the Driscoll has
worked well for me. I have been able to reach ADEV
= 10^-11 at 100 MHz at
Agreed, for low phase noise FLOOR, it is imperative to
take the signal out through the crystal. However, for
close in noise (say ADEV at t=1), the Driscoll has
worked well for me. I have been able to reach ADEV
= 10^-11 at 100 MHz at using suitable resonators.
Rick
On 2/6/2017 4:35 AM,
That is the pragmatic deflection reply . but essentially you are
correct
In a message dated 2/6/2017 7:57:26 A.M. Eastern Standard Time,
kb...@n1k.org writes:
Hi
One could easily spend years answering this sort of question. Several
people on the
list *have* done so. Two of them
Hi
One could easily spend years answering this sort of question. Several people on
the
list *have* done so. Two of them have already tossed up answers.
What are you trying to do?
What is your definition of “low”?
How well equipped are you to test this sort of thing?
How much tweaking are
Not quiet, using the crystal also as filter gives much better numbers ,
73 de Ulrich N1UL
In a message dated 2/6/2017 7:30:33 A.M. Eastern Standard Time,
rich...@karlquist.com writes:
I would say the 2 stage "Driscoll" oscillator is the
way to go. I have had good luck with it up to
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
A optimized Colpitts circuit
73 de Ulrich
In a message dated 2/6/2017 5:30:17 A.M. Eastern Standard Time,
rtoporow...@gmail.com writes:
Good morning,
What's the optimal oscillator topology for low phase noise (low frequency
noise and phase noise floor) for 25Mhz/50Mhz/100Mhz
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
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