Fox Electronics has programmable oscillator modules.  Some are
programmed at the factory and others can be loaded serially on the fly.
In addition, of course, there are the Analog Devices DDS synthesizer
chips.

Harold


On Wed, 20 Oct 1999 21:22:09 -0300 "Thomas C. Sefranek" <tcs@CMCORP.COM>
writes:
> Brian Kraut wrote:
>
> > I have seen some low cost programmable oscillators from Epson in
> > DigiKey's catalog.  The SG-8002 is programmable from 1-125MHz with
> 50ppm
> > stability.  They are under $4.00 each.  I thought that it would be
> good
> > to keep a few around for prototyping when I need an oddball
> fequency and
> > don't want to order a crystal and wait for it.  Anyone have any
> > experience with these?  Is there anything special needed to
> program
> > them?
> >
> > What would really be great is something like this that is not OTP
> for my
> > proto boards.  Are there any "EPROM" type programmable oscillators
> out
> > there?
>
> I have not used that exact unit, but I have used Epson programmable
> oscillators.
> The units I use require jumpers or links to set logic levels on the
> pins to
> program them.
>
>
> --
> Thomas C. Sefranek  WA1RHP
> ARRL Instructor, Technical Specialist, VE Contact.
> http://www.harvardrepeater.org
> http://hamradio.cmcorp.com/inventory/Inventory.html

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