EV7722DF-00C
20W Stereo Class D
Single Ended Audio Amplifier
EVALUATION BOARD
EV7722DF-00C Rev. 1.1 www.MonolithicPower.com 1
10/19/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
The Future of Analog IC Technology
TM
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:
• 180m 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 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
linearity, 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 = 0.06% 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
• Mute/Standby Modes (Sleep)
APPLICATIONS
• Flat Panel and Projection Televisions
• DVD and Surround Sound Systems
• Flat Panel Monitors
• Multimedia Computers
• Home Stereo Systems
“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.
EV7722DF-00C EVALUATION BOARD
(L x W x H) 3.5” x 2.4” x 1.2”
8.9cm x 6.1cm x 3.0cm
Board Number MPS IC Number
EV7722DF-00C MP7722DF
10
1
0.1
0.01
THD+N (%)
0.1 1 10
OUTPUT POWER (W)
MP7722_TPC01
THD+N vs Output Power
24V, f = 1KHz
