What is the pinout for a stereo connection on Input 2 of UC3022? Unbalanced stereo?

Mono setting on Input 1 is related to physical connection just in channel L?

The input 2(XLR) of UC3022 is balanced analog audio, and input 1(RCA) is stereo audio.

The audio input 1 of UC3022 couldn't change the setting,  it's just the stereo audio.

L connector is for L signal, R connector is for R signal.

About the audio input 2 of UC3022 pin assigment, it could set as mono and stereo.

When it's set as mono, 1 is for ground, 2 is for + signal,  and 3 is for - signal in balanced audio pin out.

When it's set as stereo, 1 is for ground, 2 is for L signal,  and 3 is for R signal.