Pin Descriptions

4

,

Power Analog Microelectronics Inc

08/2008 Rev 1.1

PAM8606

6W Stereo Class-D Audio Power Amplifier with DC Volume Control

www.poweranalog.com

Number

Name

Function

2

RINN

Negative differential audio input for right channel

3

RINP

Positive differential audio input for right channel

4AVDD

5V Analog VDD

5

VREF

Analog reference for gain control section

6

VOLUME

DC voltage that sets the gain of the amplifier

7REFGND

Ground for gain control circuitry. Connect to AGND. If using a DAC to control the

volume, connect the DAC ground to this terminal.

8

AGND1

Analog GND

9

FADE

Input for controlling volume ramp rate when cycling SD or during power-up. A

logic low on this pin places the amplifier in fade mode. A logic high on this pin

allows a quick transition to the desired volume setting.

10

LINP

Positive differential audio input for left channel

11

LINN

Negative differential audio input for left channel

12,13,24,25

PGNDL

Power ground for left channel H-bridge

14,15,22,23

PVCCL

Power supply for left channel H-bridge, not connected to PVCCR or AVCC.

16,17

LOUTN

Class-D 1/2-H-bridge negative output for left channel

18

BSLN

Bootstrap I/O for left channel, negative high-side FET

19

BSLP

Bootstrap I/O for left channel, positive high-side FET

20,21

LOUTP

Class-D 1/2-H-bridge positive output for left channel

26

VCLAMPL

Internally generated voltage supply for left channel bootstrap capacitors.

27

COSC

I/O for charge/discharging currents onto capacitor for ramp generator triangle

wave biased at V2P5

28

ROSC

Current setting resistor for ramp generator.

29,33

AGND

Analog GND

30

MUTE

A logic high on this pin disables the outputs and a logic low enables the outputs.

31

AVCC

High-voltage analog power supply (7.0 V to 13.5V)

32

V2P5

2.5V Reference for analog cells, as well as reference for unused audio input

when using single-ended inputs.

34

SD

Shutdown signal for IC (low= shutdown, high =operational). TTL logic levels with

compliance to AVCC.

35

VCLAMPR

Internally generated voltage supply for right channel bootstrap capacitors.

1,36,37,48

PGNDR

Power ground for right channel H-bridge

38,39,46,47

PVCCR

Power supply for right channel H-bridge, not connected to PVCCL or AVCC.

40,41

ROUTP

Class-D 1/2-H-bridge positive output for right channel

42

BSRP

Bootstrap I/O for right channel, positive high-side FET

43

BSRN

Bootstrap I/O for right channel, negative high-side FET

44,45

ROUTN

Class-D 1/2-H-bridge negative output for right channel