I want to use a PIC to duplicate what a MM5437 Digital Noise Source does.
The MM5437 is no longer available.  I suspect that I can just create random
numbers on PORT B and amplify one of the PORT B pins using a LM386 connected
to a speaker.  This should give the white noise I am looking for.  Does
anyone have any ideas about why this will or will not work?  If anyone has
done something similar, let me know so I can save some time and effort.