[sdiy] cs4344 DAC output stage

[rburnett at richieburnett.co.uk]

> I'm designing a cortex M4 based audio/synth board using the cs4344
> DAC and a cs5343 ADC.
> As i'm new to designing with DAC/ADCs here's a question.
>
> Is there an opamp needed for the DAC output stage?
> I've seen opamp output stages in quite a few designs using different
> kinds of DACs, but the datasheet for the cs4344 just states some R/C
> filters after the dac output as reference design.

You only need to use an op-amp if you want to boost the signal level or 
lower the output impedance before the audio leaves your bit of kit.

-Richie,