[time-nuts] OT: leaching was, Alternative time interval interpolation technique

Attila Kinali attila at kinali.ch
Mon Aug 16 15:52:57 UTC 2010


On Mon, 16 Aug 2010 07:58:01 +1200
Bruce Griffiths <bruce.griffiths at xtra.co.nz> wrote:

> Such low jitter oscillators are readily available.
> With some care (bandpass filtering) a cycle to cycle jitter of around 
> 50fs or so is attainable with a Wenzel OCXO for example.

Apropos Wenzel: Is there any distributor that sells them in
single quantities? Or do i have to get them from Wenzel directly?
And is there any price list available?

> However the time interval jitter degrades as the time interval increases.
> Achieving a cycle to cycle jitter of 1ps or so is relatively easy with a 
> 10MHz or 100MHz OCXO having sufficiently low phase noise.

Why an OXCO? AFAIK the temperature has only an effect on long term
stability/drift, but doesn't affect short term effects (which cause
the jitters). Or am i missing something?

			Attila Kinali
-- 
If you want to walk fast, walk alone.
If you want to walk far, walk together.
		-- African proverb



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