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’ 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 MP7720 utilizes a single ended output
structure capable of delivering 20W 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
PSRR, 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 = 0.04% 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
Integrated Startup and Shutdown Pop
Elimination Circuit
Thermal Protection
Integrated 180mΩ 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
“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.
EV0030 EVALUATION BOARD
THD+N vs
Power (24V, 1KHz)
20
10
THD+N (%)
1
0.1
Dimensions (2.4”X x 3.5”Y x 1.2”Z)
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.
© 2005 MPS. All Rights Reserved.
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MPS [ MONOLITHIC POWER SYSTEMS ]
