PAM8019

Document number: DS38822 Rev. 1 - 2

1 of 12

www.diodes.com

May 2016

© Diodes Incorporated

PAM8019

3W STEREO CLASS-D AUDIO AMPLIFIER AND CLASS AB HEADPHONE DRIVER

WITH DC VOLUME CONTROL, NON-CLIP POWER LIMIT AND UVP

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-

free, "Green" and Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total

Br + Cl) and <1000ppm antimony compounds.

Description

The PAM8019 is a Stereo 3W Class D audio power amplifier for

driving bridged-tied speakers and includes a Stereo Class AB amplifier

for driving headphones. The advanced 64 step DC volume control

minimizes external components allowing simple and accurate volume

control over the gain range of +20dB (Volume=0V) to -60dB

(Volume=5V).

Integrated

non-clip

power

limit

technology

suppresses

output

automatically with programmable power limit, improving the sound

quality and helping to protect the speakers. Programmable under

voltage protection (UVP) can be used to shut down the PAM8019 at a

pre-determined voltage level helping to eliminate speaker pop by

shutting down before the power supply collapses.

The PAM8019 is available in the power efficient and space saving

U-QFN4040-20.

Pin Assignments

Top View

SD

Bypass

VDD

UVP

PL

1

GND

Features



3W Stereo Class D Amplifier with Class AB Headphone Amplifier



Filter Free and Low EMI Architecture



Operating Voltage: 2.8V to 5.5V





64 Step DC Volume Control with Hysteresis from -60dB to +20dB



Output Power

-

Class D Amplifier THD+N=1%

VDD=5V,Load =4

Ω; Po=2.4W / Load =8Ω; Po=1.4W

-

Class D Amplifier THD+N=10%

VDD=5V, Load =4

Ω; Po=3.0W / Load =8Ω; Po=1.7W

-

Class AB Headphone Amplifier

VDD=5V, Load=32

Ω; Po=60mW



Speaker or Headphone Select



Non Clip Power Limit (NCPL) Function



OVP and Programmable UVP Protection



Thermal and Over-Current Protection with Auto-Recovery



Power Enhance Package U-QFN4040-20



Lead Free and Green Devices Available (RoHS Compliant)



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green Device (Note 3)

Applications



LCD Monitors and TVs



Projectors / All-In-One Computers



Portable / Active Speakers



Portable DVD Players / Game Machines