EV7740DN-01B
15W Stereo Class D
Single Ended Audio Amplifier
EV7740DN-01B Rev. 1.0
www.MonolithicPower.com
1
10/19/2011
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV7740DN-01B is the evaluation board for
the MP7740, a stereo 15W Class D Audio
Amplifier. It is one of MPS’ products of fully
integrated audio amplifiers which dramatically
reduce solution size by integrating the following:
250m
Ω
power MOSFETs
Startup / Shutdown pop elimination
Short circuit protection circuits
The MP7740 utilizes a single ended output
structure capable of delivering 15W into 4
Ω
speakers. MPS Class D Audio Amplifiers exhibit
the high fidelity of a Class A/B amplifier at high
efficiency. 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
•
15W Output at V
DD
= 24V into a 4
Ω
load
•
THD+N = 0.05% at 1W, 8
Ω
, 1KHz
•
90% Efficiency at 15W and V
DD
=24V with
4
Ω
load
•
Low Noise (103
μ
V Typical)
•
9.5V to 36V Operation from a Single Supply
APPLICATIONS
•
Flat Panel TV
•
Portable Docking Stations
•
Surround Sound DVD Systems
•
Televisions
•
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.
EV7740 EVALUATION BOARD
Dimensions (2.4”X x 3.5”Y x 1.2”Z)
Board Number
MPS IC Number
EV7740DN-01B MP7740
THD+N vs. P
OUT
V
DD
=24V
,
Freq=1kHz,A-wtd
THD+N (%)
0.01
20
0.02
0.05
0.1
0.2
0.5
1
2
5
10
60m
200m
1
5
20
P
OUT
(W)