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MP7731DF 参数 Datasheet PDF下载

MP7731DF图片预览
型号: MP7731DF
PDF下载: 下载PDF文件 查看货源
内容描述: 5W - 30W的D类单声道桥接音频放大器 [5W - 30W Class D Mono Bridged Audio Amplifier]
分类和应用: 消费电路商用集成电路音频放大器视频放大器光电二极管
文件页数/大小: 9 页 / 270 K
品牌: MPS [ MONOLITHIC POWER SYSTEMS ]
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MP7731
5W - 30W Class D Mono
Bridged Audio Amplifier
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
180mΩ Power MOSFETs
Mute / Standby Mode
The MP7731 utilizes a full bridge output structure
capable of delivering 5W - 30W into 4Ω
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.
FEATURES
30W into 4Ω 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 180mΩ 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
EVALUATION BOARD REFERENCE
Board Number
EV0045
Dimensions
4.8cm x 3.0cm x 1.5cm
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks
of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
THD+N vs Output Power
V
CC
20
19
18
17
16
15
14
13
12
11
MP7731
1
2
NC
PIN1
NIN1
AGND1
NC
EN1
NIN2
PIN2
AGND2
EN2
PGND1
SW1
VDD1
BS1
NC
PGND2
SW2
VDD2
BS2
NC
+
V
CC
AUDIO IN+
3
4
5
6
-
V
CC
V
CC
+
AUDIO IN-
7
8
9
EN
10
V
CC
50
f=1kHz
20
10
5
2
1
0.5
0.2
0.1
0.05
0.02
0.01
100M
1
THD+N (%)
10
50
OUTPUT POWER (W)
MP7731 Rev. 1.8
9/25/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
1