AW: [sdiy] top octave and dividers

[Buck Buchanan]

Czech Martin  & various folks wrote:
> Instead it was chosen to divide a couple of times by N,
> and then by M, thus giving fractional scaling.
 
> > > I also have an article about noninteger division (i.e.
> > > time multiplexed
> > > divider ratios) for plls.
> >
> > Great idea !
> > And the PLL's loop filter will smooth most of the jitter
> > from switching divider ratios ?
> > The VCO cannot really be locked then, but it wouldn't matter.
> >
> > If this works, you can also adjust the scale with a CV by
> > changing the "puls width" of the divider ratio multiplexing ...

Sorry for the multiple quotes...

Is this what's generally referred to as "Fractional-N" synthesis - or
related? (sounds like it)  If so, I've probably still got some app-notes
and that type of thing I could dig out if anyone's intersted.  If NSC's
fractional-N part ever got finished they probably have app-notes...
Phillips has been doing it for a while and probably has app-notes too.

Buck