Audio Amplifier
SIP9 +------+ ++ 9| -INV2 | 8| M/SS | 7| Vp | 6| OUT2 | 5| GND2 | 4| OUT1 | 3| SVRR | 2| GND1 ++ 1| INV1 +------+
No frequency to check
TDA1519 Datasheet