PAM8019E

Document number: DS46456 Rev. 1 - 2

2 of 22

www.diodes.com

May 2024

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PAM8019E

Pin Descriptions

Pin Number

Name

I/O/P

Function

3

EN

I

Low: chip shutdown with outputs Hi-Z, High: outputs enabled

4

Bypass

O

Bias Voltage for Power Amplifier

5

RIN

I

Negative Input of Right Channel Power Amplifier

6

GND

—

Analog Ground Connection

18

PGND

—

Power Ground Connection

7

LIN

I

Negative Input of Left Channel Power Amplifier

8

Volume

I

Internal Gain Setting Input

Connect to GND which set Class D and HP as the max Gain.

9

Mute

I/O

Mute Control Signal Input (High: outputs Hi-Z, Low: outputs enabled). During startup, Mute pin

will set as high if speakers not good connect

10

HP/SPK

I

Output Mode Control Input

High: Headphone Mode, Low: Speaker Mode

11

PL

I

Power limit reference voltage, see applications section for further details

12

SSM

I

Low: SSM ON, High: SSM OFF

13

VDD

P

Analog Power Supply

16

LPVDD

P

Left Channel Power Supply

20

RPVDD

P

Right Channel Power Supply

14

HPLOUT

O

Headphone

— Left Channel Output

2

HPROUT

O

Headphone

— Right Channel Output

15

LOUTN

O

Power Amplifier

— Left Channel Negative Output

17

LOUTP

O

Power Amplifier

— Left Channel Positive Output

19

ROUTP

O

Power Amplifier

— Right Channel Negative Output

1

ROUTN

O

Power Amplifier

— Right Channel Positive Output

Thermal PAD

GND

—

Connect to Power Ground (recommended)

Functional Block Diagram

ROUTP

LIN

VCM

RIN

HPROUT

BANDGAP

START_LOGIC

PLIM_L

OTP

PL

EN

Volume

Bypass

HP/SPK

VDD

RPVDD

PGND

GND

PLIM_R

SPK_OPEN_CHK

VCM

VTR

Driver

Driver

+

–

–

+

PWM

PWM

+

–

–

+

INT

R

R

–

+

+

–

Pre-Amp

VCM

VCM

RIN

RF

AGC

RF

RIN

VCM

AGC

Short Protection

VCM

VTR

Driver

Driver

+

–

–

+

PWM

PWM

INT

R

R

–

+

+

–

Pre-Amp

VCM

RIN

RF

AGC

RF

LIN

VCM

AGC

VCM

+

–

–

+

ENABLE

Mode Con.

VOLUME

PLIM Con.

VOL Con.

BYP Con.

VCM

PLIM_R

PLIM_L

OSC

SSM

SSM

SSM Con.

Mute

Mute Con.

ROUTN

HPLOUT

LPVDD

LOUTP

LOUTN

RPVDD

VDD

RPVDD

VDD

LPVDD

VDD

LPVDD

VDD