Audio power Amplifier
DIP14
+---\/---+
BOOTSTRAP | 1 14| V
RYPPLE BYPASS | 2 13| COMPENSATION
NC | 3 12| OUTPUT
COMPENSATION | 4 11| NC
FEEDBACK | 5 10| GND (POWER)
NC | 6 9| NC
INPUT | 7 8| GND (SUBSTRATE)
+--------+
No frequency to check