EV7782DF-00A
50W Class D Mono Bridged
Audio Amplifier Evaluation Board
The Future of Analog IC Technology
DESCRIPTION
The EV7782DF-00A is the demo board for the
MP7782, a Mono, 50W Class D Audio
Amplifier. It is one of MPS鈥?second generation
of fully integrated audio amplifiers which
dramatically reduces solution size by integrating
four 180m鈩?Power MOSFETs in a space
saving TSSOP20 Package. It utilizes a full
bridge output structure capable of delivering
50W into 6鈩?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鈥?proprietary variable frequency modulation
topology (patents pending) that delivers
excellent PSRR, fast response time and
operates on a single power supply.
FEATURES
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50W into 6鈩?with V
DD
= 24V @ 10% THD+N
90% Efficiency
Typical THD+N = 0.06% @ 1W
9.5V to 24V Supply Voltage Operation
Full Bridge Output Drive
4 Integrated 180m鈩?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
Flat Panel LCD and PDP Displays
Notebook and Multimedia Computers
Televisions
Home Stereos
DVD and VCD Players
Game Devices and Systems
Subwoofer
APPLICATIONS
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ELECTRICAL SPECIFICATIONS
Parameter
Supply Voltage
Symbol
V
DD
Value
9.5 to 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.
EV7782DF-00A EVALUATION BOARD
100
10
THD+N (%)
1
0.1
0.01
0.1
1
10
OUTPUT POWER (W)
100
EV7782-EC01
(L x W x H) 4.0鈥?x 3.5鈥?x 1.0鈥?(10.1cm x 8.8cm x 2.5cm)
Board Number
EV7782DF-00A
EV7782DF-00A Rev. 1.2
1/11/2006
MPS IC Number
MP7782DF
1
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
漏 2006 MPS. All Rights Reserved.
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