EV7745DF-01A

20W Stereo Class D

Single Ended Audio Amplifier EV Board

EV7745DF-01A Rev. 1.0

www.MonolithicPower.com

1

10/19/2011

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV7745DF-01A is the evaluation board for

the MP7745, a stereo 20W Class D Audio

Amplifier. It is one of MPS’ products of fully

integrated audio amplifiers which dramatically

reduce solution size by integrating the following:

• 250mΩ power MOSFETs

• Startup / Shutdown pop elimination

• Short circuit protection circuits

The MP7745 utilizes a single ended output

structure capable of delivering 2x20W into 4Ω

speakers. MPS Class D Audio Amplifiers exhibit

the high fidelity of a Class A/B amplifier at high

efficiency. The circuit is based on the MPS’

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 = 0.05% at 1W, 8Ω, 1kHz

4Ω load

• Low Noise (103μV Typical)

• 9.5V to 26V Operation from a Single Supply

APPLICATIONS

• Flat Panel TV

• Portable Docking Stations

• Surround Sound DVD Systems

• Televisions

• 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.

EV7745DF-01A EVALUATION BOARD

(L x W x H) 3.5” x 2.5” x 1.2”

9.0cm x 6.3cm x 3.0cm

Board Number

MPS IC Number

EV7745DF-01A

MP7745DF

0.1

0.2

0.5

1

2

5

10

20

0.01

0.02

0.05

P

(W)

40

12

5

10

20