Hi, I am working on the Version 3 prototype schematics and wonder if we
* should use the BQ27500-V130 or could use the BQ27200 (which appears to need less external components)
* find a 600mW replacement for the TPA6110A2 audio amplifier (we have 600mW speakers with 1000mW peak)
BTW: we probably can't simply use the same circuit as for the OpenPandora since driving an external headphone with 1W is a little high... Or should we use a completely different audio codec (like the twl6040?) that has multiple DACs, can driver multiple speakers, headphones and microphones without much external circuitry? The only downside of the twl6040 is that it comes in a BGA package which drives up the number of layers of our main board (because it should NOT go onto the CPU board).
Or some other TVL320AIC?
http://www.ti.com/lsds/ti/audio-ic/audio-codec-product.page#o4=ACTIVE&p1...
Any suggestions? Comments?
BR, Nikolaus