USB-C

More and more manufacturers of mobile phones drop the 3.5 headphone jack.
Indeed, without this jack it is easier to make the mobile waterproof.
Another trend is replacing the micro USB connector with a USB-C connector.

Today you can get dongles with USB-C in and 3.5 analog out.

This means there is a DAC build-in.

But is this DAC used?

The 24 pins USB-C allows for analog audio as well.

The device must set the bus in Alternate mode to obtain this.

Obvious, USB-C is the most analog sounding digital bus!

However this will bypass the DAC of the adapter.

It is pretty unclear when this happens and how to force or prevent this.

List of USB-C adapters