PAM8019

Document number: DS38822 Rev. 1 - 2

3 of 12

www.diodes.com

May 2016

© Diodes Incorporated

PAM8019

Pin Descriptions

Pin Number

Name

Function

3

SD

Full Chip Shutdown Control Input (Active Low)

4

Bypass

Bias Voltage for Power Amplifier

5

Negative Input of Right Channel Power Amplifier

6, 18

GND

Ground Connection

7

Negative Input of Left Channel Power Amplifier

8

Volume

Internal Gain Setting Input

Connect to VDD which Set Max. Gain = +20dB

9

Mute

Mute Control Signal Input (Active High)

10

HP/

S

Output Mode Control Input

High for Headphone Mode and Low for Speaker Mode

11

PL

Power limit reference voltage, see applications section for further details

12

UVP

Under Voltage Protection Input

See applications section for further details

13,16,20

VDD

Supply Voltage

14

Headphone - Left Channel Output

2

Headphone - Right Channel Output

15

Power Amplifier - Left Channel Negative Output

17

Power Amplifier - Left Channel Positive Output

19

Power Amplifier - Right Channel Negative Output

1

Power Amplifier - Right Channel Positive Output

PAD

GND

Connect to ground (recommended) or No Connect.

Functional Block Diagram

Gate

Driver

Gate

Driver

OSC.

Shut Down

Bias and

Vref

VDD

-

+

Volume

Control

PWM Modulator

Gate

Driver

Gate

Driver

Volume

Control

PWM Modulator

Short Crt.

Protect

UVLO

Over Temp.

Protection

Mute

Power

Limit

Bypass

Volume

Control

-

+

Controller

HP/Spk

Controller

Mute

PL

Bypass

Volume

SD

HP/SPK

VDD