EV7782DF-02

40W Class D Stereo Bridged

Audio Amplifier Evaluation Board

EV7782DF-02A Rev. 1.0

www.MonolithicPower.com

1

10/19/2007

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2007 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV7782DF-02 is a stereo evaluation board

for MPS’ MP7782 Class D Bridged Audio

Amplifier. It is a second generation, fully

integrated audio amplifier which dramatically

reduces solution size by integrating four 180mΩ

Power MOSFETs in a space saving TSSOP20

Package. It utilizes a full bridge output structure

capable of delivering 40W into 8Ω speakers. As

in all other MPS Class D Audio Amplifiers, this

device exhibits the high fidelity of a Class AB

amplifier with an efficiency of 90%. The circuit is

based on the MPS’ proprietary variable

frequency

modulation

topology

(patents

pending) that delivers excellent PSRR, fast

response time and operates on a single power

supply.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Supply Voltage

9.5 to 24

V

FEATURES

• 2 x 40W Peak, 2 x 30W Continuous into 8Ω

• 90% Efficiency

• THD+N = 0.1%

• 9.5V to 24V Supply Voltage Operation

• Full Bridge Output Drive

• 4 Integrated 180mΩ Switches

• Turn-On / Turn-Off Click and Pop Suppression

• Integrated Short Circuit Protection

• Integrated Thermal Shutdown

• Mute / Standby Mode

• Thermally Enhanced TSSOP20F Package

with Exposed Pad

APPLICATIONS

• Flat Panel LCD and PDP Displays

• Notebook and Multimedia Computers

• Televisions

• Home Stereos

• DVD and VCD Players

• Game Devices and Systems

• Subwoofer

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of

Monolithic Power Systems, Inc.

EV7782DF-01A EVALUATION BOARD

100

10

1

0.1

0.01

0.1

1

10

100

OUTPUT POWER (W)

MP7782-EC01

THD+N vs Output Power

Dimensions (L x W x H) 4.0” x 3.5” x 1.0” (10cm x 9cm x 2.5cm)

Board Number

MPS IC Number

EV7782DF-02A

2 x MP7782DF