Lpc2000

--- In lpc2000@yahoogroups.com, Brett Delmage <BDelmage@J...> wrote:
> Higher rate audio codecs also seem to be power-hogs, at least in
> relation to the miserly power that ARM7 is typically associated with.
> 
> Does anyone have any good experience with lower power, speech quality
> codecs, or even higher rate (CD quality) ones that don't suck (power)
> and are suitable for battery powered-operation? Would you recommend
> going only with the onboard ADC for 8 khz audio for best low-power
> performance?

Take a look at the AK4550 from AKM.  At 10 mA from 3.3 volts, this is
low power as well as small size.  The last time I got a price quote,
it was around $4 a chip.  

There should be tons of low power codecs or at least DACs since all
the battery powered CD and MP3 players use them.  I think you need to
look a bit harder.  You are likely finding only the high end devices
that are targeted to 5.1 channel systems and such.  Look for simple
stereo chips.