2x2 Audio Interface

This is a stereo audio interface and headphone amplifier in a small form factor. I need an audio interface but all the nice ones are too big.

It has:

- USBC

- PCM2900 CODEC

- MAX97220A headphone amplifier

- Analog input/output level knobs

This is the first product in the Ferret standard: 3''x4'' USB-C based consumer electronics products meant to be very portable and storable, but robust. Connectors and knobs are laid out linearly on a 0.5'' pitch, beginning on the left edge.