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參數(shù)資料
| 型號： | EV0045 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 5W - 30W Class D Mono Bridged Audio Amplifier |
| 中文描述： | 5W -功率30W D類單聲道橋接音頻放大器 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 279K |
| 代理商： | EV0045 |
MP7731
5W - 30W Class D Mono
Bridged Audio Amplifier
MP7731 Rev. 1.8
9/25/2006
www.MonolithicPower.com
1
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP7731 is a mono, 5W - 30W 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:
Start Up / Shut Down Pop Elimination
Short Circuit Protection Circuits
180m
Power MOSFETs
Mute / Standby Mode
The MP7731 utilizes a full bridge output structure
capable of delivering 5W - 30W into 4
speakers. As in all other MPS Class D Audio
Amplifiers, this device exhibits the high fidelity
of a Class AB amplifier with an efficiency of
90%. The circuit is based on the MPS’ proprietary
variable frequency topology Analog Adaptive
Modulation (AAM
, Patent No. 6,420,930; other
patents pending) that delivers excellent PSRR,
fast response time and operates on a single
power supply.
EVALUATION BOARD REFERENCE
Board Number
EV0045
Dimensions
4.8cm x 3.0cm x 1.5cm
FEATURES
30W into 4
with V
DD
= 16.5V
90% Efficiency at 5W
Amplifies Full Audio Range with Low THD+N
Typical = 0.1%
9.5V to 18V Supply Voltage Operation
Full Bridge Output Drive
4 Integrated 180m
Switches
Turn On / Turn Off Click and Pop Suppression
Integrated Short Circuit Protection
Integrated Thermal shutdown
Mute / Standby Mode
APPLICATIONS
Flat Panel LCD and PDP Displays
Notebook and Multimedia Computers
Televisions
Home Stereos
DVD and VCD Players
Game Devices and Systems
Monitors
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks
of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MP7731
NC
PIN1
NIN1
AGND1
NC
EN1
NIN2
PIN2
AGND2
EN2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PGND1
SW1
VDD1
BS1
NC
PGND2
SW2
VDD2
BS2
NC
AUDIO IN+
+
V
CC
V
CC
-
+
V
CC
V
CC
V
CC
EN
AUDIO IN-
50
20
10
5
2
1
0.5
0.2
0.1
0.05
0.02
0.01
T
100M
10
50
1
OUTPUT POWER (W)
THD+N vs Output Power
f=1kHz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EV0055 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:Triple Output Step-Up Plus Linear Regulators for TFT Bias |
| EV0056 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:Fixed Frequency White LED Driver |
| EV0059 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:1.2A Synchronous Rectified Step-Down Converter |
| EV0060 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:1.2A Synchronous Rectified Step-Down Converter |
| EV0062 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:1.3MHz Low Power LED Torch/Flash Driver |
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