[time-nuts] Effect of EFC noise on phase noise

Scott Stobbe scott.j.stobbe at gmail.com
Mon Aug 1 16:01:50 EDT 2016

I don't have the answer of the top of my head, but phase noise of VCOs and
PLLs is well documented. Perhaps "loop filter noise vco" or the like may

On Mon, Aug 1, 2016 at 11:18 AM, Attila Kinali <attila at kinali.ch> wrote:

> On Mon, 01 Aug 2016 14:36:28 +0000
> "Poul-Henning Kamp" <phk at phk.freebsd.dk> wrote:
> > >I need some formulas that relate EFC noise to the (added) phase noise of
> > >an OCXO. It shouldn't be too difficult to come up with something. But
> > >before I make some stupid mistakes, i wanted to ask whether someone
> > >has already done this or has any references to papers? My google-foo
> > >was not strong enough to find something.
> >
> > Isn't that just FM modulation ?
> Yes, it is. The problem is not the theory. The problem is to calculate
> the correct values. I know i can figure it out, but if there are ready
> to use formulas that are known to be correct, I rather use those.
>                         Attila Kinali
> --
> It is upon moral qualities that a society is ultimately founded. All
> the prosperity and technological sophistication in the world is of no
> use without that foundation.
>                  -- Miss Matheson, The Diamond Age, Neil Stephenson
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