smerrett79
Member
Hi everyone, first post after following Paul's CS42448 build on Hackaday.io and deciding to make a keyboard-based sequencer type device for my own education in audio and to see what my children do with the result.
I will probably get an audio shield to go with my Teensy 3.2 (which I already have) for initial playing around but I have seen elsewhere that the codec chip used in the audio shield might not be best for my eventual application (no amp? cross-talk?). Do any of you have any codec recommendations, in light of the following information:
So far my search has narrowed down to the likes of the TI TLV320AIC3110.
If you have any wisdom to offer, I'd be grateful. Thanks
I will probably get an audio shield to go with my Teensy 3.2 (which I already have) for initial playing around but I have seen elsewhere that the codec chip used in the audio shield might not be best for my eventual application (no amp? cross-talk?). Do any of you have any codec recommendations, in light of the following information:
- I would like built in (probably mono) speaker(s) so an integrated amp is nice to have
- I would like headphone out, preferably with sufficient insight/registers/gpio to automatically or under Teensy control switch between built in speaker(s) and headphones
- I would like an onboard microphone, so an input for that would be good. Mic bias etc would be great.
- Budget is up to $10 but obviously the cheaper, the more mistakes I can make!
- I am "happy" soldering qfn 0.5mm pitch but easier to solder parts will certainly have room on the board
- I plan to power the system from 4x AA cells although I could be dissuaded for a good reason.
- I expect to have to put in a separate e.g. 1.8V rail.
- Other than that, needs to work with Teensy, so I2S etc. I2C for config is fine but if it works with power-on defaults, that's great! I don't think I need any DSP etc.
So far my search has narrowed down to the likes of the TI TLV320AIC3110.
If you have any wisdom to offer, I'd be grateful. Thanks