EV7720DS-00A

20W Stereo Class D Single Ended

Audio Amplifier Evaluation Board

EV7720DS-00A 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 EV7720DS-00A is the evaluation board for

the MP7720, a mono 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 MP7720 utilizes a single ended output

structure with capacitor divider configuration

capable of delivering 20W 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 PSRR, fast

response time and operates on a single power

supply.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Supply Voltage

24

V

FEATURES

• No Supply Pumping

• THD+N = 0.08% at 1W, 8Ω

• 90% Efficiency at 20W

• Switching Frequency Up to 1MHz

• 9.5V to 24V Operation from a Single Supply

• Integrated Startup and Shutdown Pop

Elimination Circuit

• Thermal Protection

• Mute/Standby Modes (Sleep)

APPLICATIONS

• Surround Sound DVD Systems

• Televisions

• 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.

EV7720DS-00A EVALUATION BOARD

Dimensions (2.4”X x 3.5”Y x 1.2”Z)

Board Number

MPS IC Number

EV7720DS-00A

MP7720DS

10

1

0.1

0.01

0.1

1

10

POWER (W)

THD+N vs

Output Power