AN17821A Overview
Pin No. Description 1 VCC 7 GND (input) 2 Channel 1 output (+) 8 Channel 2 input 3 GND (channel 1 output) 9 Volume 4 Channel 1 output (−) 10 Channel 2 output (−) / 5 Standby 11 GND (channel 2 output) 6 Channel 1 input 12 Channel 2 output (+).