SAMHOP Microelectronics Corp.

PIN DESCRIPTIONS

3W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL

No.

Pin name

I / O

Function

1

RLINEIN

I

Right channel input signal.

2LLINEIN

I

3

LOUT -

O

Left channel negative audio output.

-

Supply voltage terminal.

5

6

7

8

-

9

SE/BTL

10

11

12

Left channel input signal.

LOUT +

O

Left channel positive audio output.

Places the amplifier in shutdown mode if a TTL logic low is placed on

This terminal.

SHUTDOWN

I

BYPASS

Tap to voltage divider for internal midsupply bias generator used for

analog reference.

I

Power ground.

GND

VOLUME

I

Terminal for DC volume control. DC voltage range is 0V to 5V.

I

Output MUX control. When this terminal is high, SE outputs are

selected. When this terminal is low, BTL outputs are selected.

ROUT +

O

Right channel positive audio output.

Right channel negative audio output.

ROUT -

O

Page 2

V.0.1 Sep 12,2007