[time-nuts] another Ebay mixup, 5370

[SAIDJACK at aol.com]

In a message dated 6/10/2007 19:09:09 Pacific Daylight Time,  
bruce.griffiths at xtra.co.nz writes:

>A  well designed frequency multiplier has a lower equivalent phase noise  
>than any digital divider so the phase noise of a VCXO locked to a  10MHz 
>reference via a digital divider and a phase locked loop will be  worse 
>than when a well designed frequency multiplier is  employed.

>Bruce



Hi Bruce,
 
that's possible, but one does not necessarily need to use a digital divider  
to use a 50/200MHz VCXO, and your statement only holds if the 10MHz  source is 
clean.
 
I would not consider >200ps jitter  on the 10MHz clean. One of the  first 
things I plan to do is try to figure out where that noise is coming from.  I 
don't think it's the 10811.
 
bye,
Said



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