Haven't been following this particular thread--so apologies if this has been mentioned: FOX makes (used to make?) a really neat programmable oscillator--good up to 100 MHz or so as I recall. Sold a neat demo kit with two oscillators, software, and programming/demo board and software for about $50 a few years ago. Dunno what ever happened to them, But mine is still in the drawer, and gets looked at periodically. I've also used a programmable oscillator/divider--epson I think--which were in digikeys catalog. Really worked well. Programming was via pull ups and jumpers to ground. kelly At 09:20 PM 10/21/99 -0700, you wrote: >I don't even know how they can call them programable. Kind of like calling a >standard quartz crystal programmable. > >Erik Reikes wrote: > >> At 09:22 PM 10/20/99 -0300, you wrote: >> >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 know exactly the ones you are talking about. They are 'programmed' at >> the factory, and that's the only way, unfortunately. I had planned to use >> them for a project but there was a 12 week lead time on the freq. I needed, >> so I changed my design.... >> >> -Erik Reikes > > William K. Borsum, P.E. -- OEM Dataloggers and Instrumentation Systems & San Diego, California, USA