Class D Audio Subsystem Provides Industry's Highest Output Power and Smallest Total Solution
Note to Editor:
- The MAX9796 is a 2.3W, Class D audio subsystem with an integrated DirectDrive headphone amplifier.
- This device integrates proprietary Class D amplifier technologies that enable it to provide the industry's highest output power.
- Additionally, it eliminates multiple external components, thus providing the industry's smallest total solution size.
- The MAX9796 is ideal for cell phones, portable media players, and handheld gaming consoles.
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SUNNYVALE, CA—September 12, 2007—Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX9796 2.3W, Class D audio subsystem. This device combines a high-efficiency, mono Class D amplifier; a DirectDrive™ stereo headphone amplifier; and a DirectDrive mono receiver amplifier. By using Maxim's patented, DirectDrive* architecture, the receiver and headphone amplifiers produce a ground-referenced output from a single supply, thus eliminating the need for large, DC-blocking capacitors. To further save cost and space, the MAX9796 utilizes Maxim's patented, active-emissions-limiting (AEL) circuitry** and spread-spectrum-modulation technique,† which greatly reduce EMI and eliminate the output filters typically required by Class D amplifiers. Providing the industry's highest output power and enabling the smallest total solution, the MAX9796 is ideal for cell phones, portable media players (PMPs), handheld gaming consoles, and other applications in which high audio quality, output power, and efficiency are paramount.
The MAX9796 incorporates Maxim's third-generation, ultra-low EMI, Class D amplifier technologies (DirectDrive, AEL, and spread-spectrum modulation) to provide Class AB performance with Class D efficiency. This subsystem, thus, delivers 2.3W of output power into a 4Ω load from a 5V supply, and offers efficiencies up to 79%. Additionally, the MAX9796 features a fully differential architecture, a full-bridged output, and comprehensive click-and-pop suppression. Multiple audio inputs increase flexibility and reduce total solution size over competitive devices, which require external switches. To further enhance flexibility, the MAX9796 utilizes a user-defined, I2C-controlled mixer architecture that includes an input mixer, volume control, and output mixer.
The MAX9796 is packaged in a 3mm x 3mm, 32-bump UCSP™ that is fully specified over the -40°C to +85°C extended temperature range. Prices start at $1.67 (1000-up, FOB USA).
*U.S. Patent #7,061,327.
**Patent pending.
†U.S. Patent #6,847,257.
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