TM
EV7722DF-00C
20W Stereo Class D
Single Ended Audio Amplifier
EVALUATION BOARD
The Future of Analog IC Technology
TM
DESCRIPTION
The EV7722DF-00C is the evaluation board for
the MP7722. The MP7722 is a stereo 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 MP7722 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
efficiencies greater than 90%. The circuit is
based on the MPS’ AAM
TM
proprietary variable
frequency topology that delivers excellent
linearity, fast response time and operates on a
single power supply.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
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20W Output at V
DD
= 24V into a 4Ω load
THD+N = 0.06% 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
Mute/Standby Modes (Sleep)
Flat Panel and Projection Televisions
DVD and Surround Sound Systems
Flat Panel Monitors
Multimedia Computers
Home Stereo Systems
APPLICATIONS
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
AAM (Analog Adaptive Modulation) is a Trademark of Monolithic Power
Systems, Inc.
ELECTRICAL SPECIFICATIONS
Parameter
Supply Voltage
Symbol
V
DD
Value
24
Units
V
EV7722DF-00C EVALUATION BOARD
THD+N vs Output Power
24V, f = 1KHz
10
THD+N (%)
1
0.1
(L x W x H) 3.5” x 2.4” x 1.2”
8.9cm x 6.1cm x 3.0cm
Board Number
EV7722DF-00C
EV7722DF-00C Rev. 1.1
10/19/2005
0.01
0.1
1
10
OUTPUT POWER (W)
MP7722_TPC01
MPS IC Number
MP7722DF
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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