EV7782DF-02
40W Class D Stereo Bridged
Audio Amplifier Evaluation Board
EV7782DF-02A 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 EV7782DF-02 is a stereo evaluation board
for MPS’ MP7782 Class D Bridged Audio
Amplifier. It is a second generation, fully
integrated audio amplifier which dramatically
reduces solution size by integrating four 180m
Power MOSFETs in a space saving TSSOP20
Package. It utilizes a full bridge output structure
capable of delivering 40W into 8 speakers. As
in all other MPS Class D Audio Amplifiers, this
device exhibits the high fidelity of a Class AB
amplifier with an efficiency of 90%. The circuit is
based on the MPS’ proprietary variable
frequency modulation topology (patents
pending) that delivers excellent PSRR, fast
response time and operates on a single power
supply.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Supply Voltage V
DD
9.5 to 24 V
FEATURES
• 2 x 40W Peak, 2 x 30W Continuous into 8
with V
DD
= 24V
• 90% Efficiency
• THD+N = 0.1%
• 9.5V to 24V Supply Voltage Operation
• Full Bridge Output Drive
• 4 Integrated 180m Switches
• Turn-On / Turn-Off Click and Pop Suppression
• Integrated Short Circuit Protection
• Integrated Thermal Shutdown
• Mute / Standby Mode
• Thermally Enhanced TSSOP20F Package
with Exposed Pad
APPLICATIONS
• Flat Panel LCD and PDP Displays
• Notebook and Multimedia Computers
• Televisions
• Home Stereos
• DVD and VCD Players
• Game Devices and Systems
• Subwoofer
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
EV7782DF-01A EVALUATION BOARD
100
10
1
0.1
0.01
THD+N (%)
0.1 1 10 100
OUTPUT POWER (W)
MP7782-EC01
THD+N vs Output Power
Dimensions (L x W x H) 4.0” x 3.5” x 1.0” (10 cm x 9cm x 2.5cm)
Board Number MPS IC Number
EV7782DF-02A 2 x MP7782DF