WH Tan wrote:

>>Look up AN-31 and AN-263 pdf's from National Semi.  Then google stuff
>>like "bob pease sine generator" and
>>sine generator  ap note "jim williams " site:linear.com

I've been following this thread.
Now, just a simple/trivial hint: but, what about ROM-based tables with 
waveforms (sine/triangle/square) and a software loop to output them to a 
DAC?
Subsampling/oversampling should generate a wide range of frequencies.

Frequency will not be *very* high, but shold be good for audio range and 
a bit more.

-- 
Ciao, Dario
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist