PAM8945

Document number: DS38267 Rev. 1 - 2

2 of 9

www.diodes.com

December 2015

© Diodes Incorporated

PAM8945

Typical Applications Circuit

+

VBAT

PVDD

SW

EN

IN+

IN-

AGC AGND

BGND

OUT-

OUT+

PGND

AGC

Audio Input

OFF

ON

2.8V to 5.2V

100

μF

10

μF

2.2

μH

1

μF

10

μF

Pin Descriptions

Pin Number

Pin Name

Description

1

PVDD

Boost Converter Output and Amplifier Power Supply

2

OUT+

Amplifier Positive Audio Output

3

OUT-

Amplifier Negative Audio Output

4

PGND

Power Ground

5

AGND

Analog Ground

6

IN-

Negative Audio Input

7

IN+

Positive Audio Input

8

EN

Shutdown Terminal for the Chip

9

AGC

AGC Setting Gain

10

VBAT

Supply Voltage

11

SW

Boost Convertor Switching

12

BGND

Power Ground