EV7722DF-02A

20W Stereo Class D Single Ended

Audio Amplifier Evaluation Board

EV7722DF-02A Rev. 1.1

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 EV7722DF-02A is the evaluation board for

the MP7722. The MP7722 is a stereo 20W

Class D Audio Amplifier. It is one of MPS’

second generation of fully integrated audio

amplifiers which dramatically reduces solution

size by integrating the following:

• 180mΩ power MOSFETs

• Startup / Shutdown pop elimination

• Short circuit protection circuits

• Mute / Standby

The MP7722 utilizes a single ended output

structure with capacitor divider configuration

capable of delivering 2x20W into 4Ω speakers.

MPS Class D Audio Amplifiers exhibit the high

fidelity of a Class A/B amplifier at efficiencies

greater than 90%. The circuit is based on the

topology that delivers excellent linearity, fast

response time and operates on a single power

supply.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Supply Voltage

24

V

FEATURES

• THD+N = 0.08% at 1W, 8Ω

• 90% Efficiency at 20W

• 9.5V to 24V Operation from a Single Supply

• Mute/Standby Modes (Sleep)

APPLICATIONS

• Flat Panel and Projection Televisions

• DVD and Surround Sound Systems

• Flat Panel Monitors

• Multimedia Computers

• Home Stereo Systems

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

Monolithic Power Systems, Inc.

AAM (Analog Adaptive Modulation) is a Trademark of Monolithic Power

Systems, Inc.

EV7722DF-02A EVALUATION BOARD

(L x W x H) 3.5” x 2.4” x 1.2”

8.9cm x 6.1cm x 3.0cm

Board Number

MPS IC Number

EV7722DF-02A

MP7722DF

THD+N vs Output Power

20

10

1

0.1

0.01

0.1

1.0

10