'Amplifer' related articles 1

  1. 2007/07/23 MP7722 - 2 x 20W Class D Stereo Single Ended Audio Amplifer
DESCRIPTION
The MP7722 is a stereo 2 x 20W Class D Audio Amplifier. It is one of MPS’ second generation
fully integrated audio amplifiers which dramatically reduces solution size by integrating
the following:
-180mΩ power MOSFETs
- Startup / Shutdown pop elimination
- Short circuit protection
- Mute / Standby
The MP7722 utilizes a single ended output structure capable of delivering 2 x 20W into 4Ω
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 low distortion, fast response time and operates on a single power supply.

FEATURES
• 2 x 20W Output at VDD = 24V into a 4Ω load
• THD+N = 0.06% at 1W, 8Ω
• 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 and Short Circuit Protection
• Integrated 180mΩ Switches
• Mute/Standby Modes (Sleep)
• Thermally Enhanced 20-Pin TSSOP Package with Exposed Pad

APPLICATIONS
• Surround Sound DVD Systems
• Televisions
• Flat Panel Monitors
• Multimedia Computers
• Home Stereo Systems

MP7722DF

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