EV0030 (MP7720DS)
20W Stereo Class D
Single Ended Audio Amplifier
EVALUATION BOARD
EV0030 Rev. 1.6 www.MonolithicPower.com 1
6/13/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
The Future of Analog IC Technology
TM
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:
180m 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 4
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.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Supply Voltage V
DD
24 V
FEATURES
• 20W Output at V
DD
= 24V into a 4 load
• THD+N = 0.04% at 1W, 8
• 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 180m Switches
• Mute/Standby Modes (Sleep)
• Available in Tiny 8-Pin SOIC and PDIP Packages
APPLICATIONS
• Surround Sound DVD Systems
• Televisions
• Flat Panel Monitors
• 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.
EV0030 EVALUATION BOARD
Dimensions (2.4”X x 3.5”Y x 1.2”Z)
Board Number MPS IC Number
EV0030 MP7720DS
20
10
1
0.1
0.01
THD+N (%)
0.1 1 10 30
POWER (W)
MP7720-TPC01
THD+N vs
Power (24V, 1KHz)
