I am working on something similiar, my approach is I use a PIC with A>D
built in for the input part, and for the ouput I have two options, ZN426 is
a paralel D>A devices and of what I have stock, TLV5628 a serial D>A device
(about $4), but there are lots of other ic's that do the same.

-----Original Message-----
From: David Stubbs [mailto:n0p3x@N0P3X.WORLDONLINE.CO.UK]
Sent: 24/07/2001 20:15
To: PICLIST@MITVMA.MIT.EDU
Subject: [PIC]: a2d and d2a and digital sound processing


Hi,

I'm interested in playing around with digital sound processing. Just making
simple PIC based projects like a basic amplifier. Now, I figure I need an
analogue to digital converter to feed a digital signal to the PIC to
manipulate (in the case of amplification just add double it, if I don't care
about clipping). Then a digital to analogue converter to feed the signal
back to a speaker. However, I took a look in the RS catalogues for D2A and
A2D converters and there are tons of them, all very highly priced. The
prices cannot really be that expensive can they?

I would appreciate it if someone could give me a few pointers on what
converters to use, and how to use them etc.

Thanks very much.
Regards,

David Stubbs

WEB: www.nti-uk.com
TEL UK: 07968 397782

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