4 2013-02-13 www.fritzing.org The STA540 is a 4-channel, class AB audio amplifier designed for high quality sound applications. STA540 W_6400BG_HEATSINK STA540 MULTIWATT15_6400BGHEATSINK multiwatt15_6400bgheatsink sparkfun Audio Amplifier w_6400bg_heatsink DIAG

IN1

IN2

IN3

IN4

OUT1

OUT2

OUT3

OUT4

P-GND

S-GND

STBY

SVR

VCC1

VCC2