[time-nuts] NCOCXO anyone?

Attila Kinali attila at kinali.ch
Thu Jul 28 14:03:21 EDT 2016

On Fri, 22 Jul 2016 08:19:43 +0000 (UTC)
Bruce Griffiths <bruce.griffiths at xtra.co.nz> wrote:

> No, the first one merely uses a pair of cascaded heterodyne PLLs
> as shown on p3 of the manual.

Ok. I tried to understand how this circuit works. While I can see
how a small and precise frequency offset can be produced, I do not
see how a small phase offset with fixed frequency can be produced.
At least not at the 100fs resolution level they are claiming in
the manual. Would someone be so kind and explain the working
of the circuit?

> A diophantine setup may be useful here if one wished to construct something similar.

What is a diophantine setup?

				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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