MP7720DS Datasheet_PDF文件下载_芯片资料查询

TM

EV0030 (MP7720DS)

20W Stereo Class D

Single Ended Audio Amplifier

EVALUATION BOARD

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鈥?second generation of fully

integrated audio amplifiers which dramatically

reduces solution size by integrating the

following:

180m鈩?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 4鈩?/div>

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鈥?AAM

TM

proprietary variable

frequency topology that delivers excellent

PSRR, fast response time and operates on a

single power supply.

FEATURES

鈥?/div>

20W Output at V

DD

= 24V into a 4鈩?load

THD+N = 0.04% at 1W, 8鈩?/div>

93% Efficiency at 20W

Low Noise (190碌V 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 180m鈩?Switches

Mute/Standby Modes (Sleep)

Available in Tiny 8-Pin SOIC and PDIP Packages

Surround Sound DVD Systems

Televisions

Flat Panel Monitors

Multimedia Computers

Home Stereo Systems

APPLICATIONS

ELECTRICAL SPECIFICATIONS

Parameter

Supply Voltage

Symbol

V

DD

Value

24

Units

V

鈥淢PS鈥?and 鈥淭he Future of Analog IC Technology鈥? are Registered Trademarks

of Monolithic Power Systems, Inc.

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

Systems, Inc.

EV0030 EVALUATION BOARD

THD+N vs

Power (24V, 1KHz)

20

10

THD+N (%)

1

0.1

Dimensions (2.4鈥漍 x 3.5鈥漎 x 1.2鈥漐)

Board Number

EV0030

EV0030 Rev. 1.6

6/13/2005

0.01

0.1

MPS IC Number

MP7720DS

1

POWER (W)

10

30

MP7720-TPC01

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

1

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