LA 4285-LA4287 AUDIO AMP 7WATT

pin1.int INPUT
pin2.GND
pin3.ext INPUT
pin4.SWITCH [int/ext]
pin5.EVR control
pin6.DE-COUPLING
pin7.PWR NF
pin8.GND
pin9.OUTPUT
pin10.VCC

ket supply=
LA4285=16V-24V
LA4287=20V-30V