Headphone jack specs

What are the audio specs for the headphone jack on the DIY Framework- bitrates, channels, impedance? I want to check if it accepts line-level stereo input specifically, though it would be good to know all of its modes.

I did see Headphone jack question which shows that it can take mono mic-level input + stereo output, but no detailed info. The Freamwork main site shows that it has a headphone jack but no details on its capabilities and limits. (To be fair that is a minor spec which I don’t see on other manufacturers’ sites either, after a quick survey)