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MP7720 Datasheet

  • MP7720

  • 20W Class D Mono Single Ended Audio Amplifer

  • 11頁

  • MPS

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MP7720
20W Class D Mono
Single Ended Audio Amplifer
The Future of Analog IC Technology
DESCRIPTION
The MP7720 is a mono 20W Class D Audio
Amplifier. It is one of MPS鈥?second generation
of fully integrated audio amplifiers which
dramatically reduces solution size by integrating
the following:
180m鈩?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鈩?/div>
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鈥?proprietary variable
frequency topology that delivers excellent
PSRR, fast response time and operates on a
single power supply.
FEATURES
鈥?/div>
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20W Output at V
DD
= 24V into a 4鈩?load
THD+N = 0.04% at 1W, 8鈩?/div>
93% Efficiency at 20W
Low Noise (190碌V 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鈩?Switches
Mute/Standby Modes (Sleep)
Available in Tiny 8-Pin SOIC and PDIP Packages
Surround Sound DVD Systems
Televisions
Flat Panel Monitors
Multimedia Computers
Home Stereo Systems
APPLICATIONS
EVALUATION BOARD REFERENCE
Board Number
EV0030
Dimensions
2.4鈥漍 x 3.5鈥漎 x 1.2鈥漐
鈥淢PS鈥?and 鈥淭he Future of Analog IC Technology鈥?are Registered Trademarks of
Monolithic Power Systems, Inc.
AAM (Analog Adaptive Modulation) is a Trademark of Monolithic Power
Systems, Inc.
TYPICAL APPLICATION
V
DD
OFF ON
4
EN
VDD
6
1
PIN
PGND
8
THD+N vs
Power (24V, 1KHz)
20
10
2
MP7720
NIN
BS
5
THD+N (%)
+
3
AGND
SW
7
1
AUDIO
INPUT
0.1
0.01
0.1
1
POWER (W)
10
30
MP7720-TPC01
MP7720_TAC_S01
MP7720 Rev. 1.9
3/13/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
漏 2006 MPS. All Rights Reserved.
1

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