On 17/01/2011 11:30 AM, scott wrote:
>>> You probably have separate DACs for the MP3 player and the rest of the
>>> phone anyway.
>>
>> You reckon? I would have thought space and power consumption
>> considerations would preclude that.
>
> Well for power consumption the DAC for the the phone conversations can
> be much lower quality. It wouldn't surprise me if there was a clever DAC
> that could be switched between low-quality-low-power and
> high-quality-high-power mode. There is all sorts of stuff like that in
> phones.

I wouldn't have thought there's any relationship at all between quality 
and power consumption. Not for a DAC, anyway. Either way it's a pretty 
low-power device. Presumably the transmitter and backlight use vastly 
more power...

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