[ARC5] Programmable Oscillators

[Bill Fuqua]

   I have used these when they cost much more.
They are fine at low frequencies but above 20 MHz the phase noise sidebands
are noticeable and practically unusable at VHF frequencies. At VHF frequencies
they sound more like a hiss than a carrier.
   There have been some improvements since then in the internal 
synthesizers and perhaps
they are much better. Perhaps I should give them a try again.
   Please let us know how they turn out for you.
Oh yes, the ones I got were programmable do the Hz.
73
Bill wa4lav

At 08:26 AM 2/10/2013 -0800, J. Forster wrote:
>Hi,
>
>Have you checked the actual available frequencies? I'd expect them to be
>quantized in some fashion..
>
>The output is likely to be 0 & 1 logic levels, swo will have loads of odd
>harmonics.
>
>-John
>
>===============
>
>
> > Here is a page from Digikey.  Lowest-price for through-hole
> > oscillator, programmed to order by them is $4.10 in quantites of 1.
> >
> > http://tinyurl.com/b6kxgeo
> >
> > I haven't ordered any yet but will soon.
> >
> > I'd go with the 5-Volt type for the bigger rail-to-rail swing.
> > Some even have "Tri-state" control pins so switching is easy.
> >
> > Output to a Pierce will probably need conditioning in some way,
> > but that should be easy.
> >
> > 73 Dave AB5S.
> >
> >
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