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參數資料
| 型號： | EV0030 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 20W Class D Mono Single Ended Audio Amplifer |
| 中文描述： | D類單聲道20瓦單端音頻放大器 |
| 文件頁數： | 1/11頁 |
| 文件大?。?/td> | 344K |
| 代理商： | EV0030 |
MP7720
20W Class D Mono
The Future of Analog IC Technology
Single Ended Audio Amplifer
MP7720 Rev. 1.9
3/13/2006
www.MonolithicPower.com
1
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
DESCRIPTION
The MP7720 is 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’ proprietary variable
frequency topology that delivers excellent
PSRR, fast response time and operates on a
single power supply.
EVALUATION BOARD REFERENCE
Board Number
EV0030
Dimensions
2.4”X x 3.5”Y x 1.2”Z
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.
TYPICAL APPLICATION
+
AUDIO
INPUT
OFF ON
V
DD
MP7720
SW
BS
PGND
VDD
PIN
EN
NIN
AGND
8
6
5
7
1
4
2
3
MP7720_TAC_S01
20
10
1
0.1
0.01
T
0.1
1
10
30
POWER (W)
MP7720-TPC01
THD+N vs
Power (24V, 1KHz)
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