Lpc2000

--- In lpc2000@yahoogroups.com, "Gus" <gus_is_working@y...> wrote:
> 
> > A simple solution would be a LPC213x micro & use the 10 bit d/a 
> that's built it.
> 
> What audio frequency can you do with the internal DAC?
> Can someone explain more what is xxdb s/n? I am assuming s/n means 
> signal/noise! So when we say 60db s/n, what does this mean? good 
> audio? bad? acceptable?

Good vs. bad depends on your application.  60 dB is just a way of
describing how much noise the DAC will add to the signal.  20 dB is a
factor of 10x in voltage, 60 dB is a factor of 1000.  So a 1 volt
signal will have 1 mV of noise.  

You need to tell us what quality level you require.  Are you shooting
for CD quality (meaning nearly no audible noise or distortion) or more
like telephone quality (some noise and audible distortion)?