Cirrus Logic CS4391 - Manual (Page 24)

CS4391
24 DS335PP4
Differential Analog Output - AOUTB+, AOUTB- and AOUTA+, AOUTA-
Pins 14, 15 and 18, 19, Outputs
Function:
The full scale differential analog output level is specified in the Analog Characteristics specifications table.
Analog Ground - AGND
Pin 16, Input
Function:
Analog ground reference.
Analog Power - VA
Pin 17, Input
Function:
Analog power supply. Typically 3 to 5 VDC.