Whoops - missed the last thought on serially
programmable frequency generators. That's a good one.
I have used an Analog Devices AD9851 DDS in a
PIC-based frequency source. The 180MHz output range is
probably overkill, and it only has a sine output.
There is the following chip though:
http://www.analog.com/en/prod/0,,770_843_AD9833%2C00.htmlwhich has sine/tri/sq outputs and is serially
programmable. Fairly inexpensive and while
surface-mount it does have exposed leads so it would
be hand-solderable. ADI is pretty good people and they
have been known to be generous with the free
samples...
Eric
--- Grant Richter <
grichter@...> wrote:
> I still wish we could put a little noise chip on the
> CVS board
<snip>
> Maybe a frequency
> synthesizer with an SPI programming port?
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com