Carl R. Stevenson wrote:
--scott

Modern DDS devices would require too many pins on the device for
cheap packages unless they used some sort of serial communications
or a modest pin count multiplexed bus.

I doubt that you will find anything useful with a straight binary or BCD
input because the devices need too many bits loaded into them to set
up all of the internal functions/registers.

Right. I am looking for something that might best be implemented as
an ASIC somewhere, in that it would be a special-purpose sine wave
synthesizer rather than a general purpose DDS device.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."