Whilst the mbed has a built-in ADC, it also includes an I2S digital audio interface which means we can connect up a high quality audio ADC.
Here are some basic requirements for trying to find a suitable one:
- Includes an amplifier of some sort (ideally headphone, with a bonus of small speaker/line)
- Is in a sensible SOIC/LQFP etc package, rather than BGA/CSP/QFN which is hard to hand solder
- Ideally could be run off the single 3.3v rail with minimal external components
- Is available widely in 1-off units
First experiments with the TI chip. It lives!
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