EV0030 查看數據表（PDF） - Monolithic Power Systems

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EV0030

20W Stereo Class D Single Ended Audio Amplifier

Monolithic Power Systems 

TM

The Future of Analog IC Technology TM

GENERAL DESCRIPTION

The EV0030 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 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 MPS’ AAMTM proprietary variable

frequency topology that delivers excellent

PSRR, fast response time and operates on a

single power supply.

ELECTRICAL SPECIFICATIONS

Parameter

Supply Voltage

Symbol

VDD

Value Units

24

V

EV0030 EVALUATION BOARD

EV0030 (MP7720DS)

20W Stereo Class D

Single Ended Audio Amplifier

EVALUATION BOARD

FEATURES

• 20W Output at VDD = 24V into a 4Ω load

• THD+N = 0.04% at 1W, 8Ω

• 93% Efficiency at 20W

• Low Noise (190µV Typical)

• Switching Frequency Up to 1MHz

• 9.5V to 24V Operation from a Single Supply

• Integrated Startup and Shutdown Pop

Elimination Circuit

• Thermal Protection

• Integrated 180mΩ Switches

• Mute/Standby Modes (Sleep)

• Available in Tiny 8-Pin SOIC and PDIP Packages

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.

THD+N vs

Power (24V, 1KHz)

20

10

1

0.1

Dimensions (2.4”X x 3.5”Y x 1.2”Z)

Board Number

EV0030

MPS IC Number

MP7720DS

0.01

0.1

1

POWER (W)

10 30

MP7720-TPC01

EV0030 Rev. 1.6

www.MonolithicPower.com

1

6/13/2005

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2005 MPS. All Rights Reserved.

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