MAX9741

PRODUCTION

12W+12W, Low-EMI, Spread-Spectrum, Stereo, Class D Amplifier

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $3.21

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Part Details

Low EMI
Unique Spread-Spectrum Mode Offers 5dB Emissions Improvement Over Conventional Methods
Up to 88% Efficient into 16Ω
12W+12W Continuous Output Power into 8Ω
15W+15W Continuous Output Power into 16Ω
Low 0.07% THD+N
High PSRR (80dB at 1kHz)
10V to 25V Single-Supply Operation
Differential Inputs Minimize Common-Mode Noise
Pin-Selectable Gain Reduces Component Count
Industry-Leading Click-and-Pop Suppression
Low Quiescent Current (24mA)
Low-Power Shutdown Mode (0.2µA)
Short-Circuit and Thermal-Overload Protection
Available in Thermally Efficient, Space-Saving 56-Pin TQFN (8mm x 8mm x 0.8mm) Package

Part Models: 2
1ku List Price: Starting From $3.21

Documentation

Data Sheet 1

MAX9741: 12W+12W, Low-EMI, Spread-Spectrum, Stereo, Class D Amplifier Data Sheet (Rev.0) 02/24/2006

Technical Articles 3

Class D Amplifiers: Fundamentals of Operation and Recent Developments 01/31/2007

Class D Amplifiers Guide 08/18/2006

Thermal Considerations for a Class D Amplifier 08/16/2006

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX9741ETN+D	56-LFCSP-8X8X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX9741ETN+TD	56-LFCSP-8X8X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Audio Amplifiers 1
MAX9708	PRODUCTION	20W/40W, Filterless, Spread-Spectrum, Mono/Stereo, Class D Amplifier

Evaluation Kits

Evaluation Kit for the MAX9741

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Features and Benefits

10V to 25V Single-Supply Operation
Differential or Single-Ended Input Modes
Fully Differential Outputs
Up to 88% Efficiency into 16Ω
Drives 2 x 12W Continuous into 8Ω
Drives 2 x 15W Continuous into 16Ω
Low 0.1% THD+N
Selectable Between Spread-Spectrum and Fixed-Frequency Modulation
Pin-Selectable Gains (+13dB, +16dB, +19.1dB, +29.6dB)
Surface-Mount Construction
Fully Assembled and Tested

Product Details

The MAX9741 evaluation kit (EV kit) is a fully assembled and tested circuit board that configures the MAX9741 Class D amplifier to drive 12W into a pair of 8Ω speakers in stereo for audio applications. The EV kit's speaker outputs can be filterless to minimize circuit area, can be filtered to ease evaluation.

The MAX9741 EV kit operates from a 10V to 25V DC power supply. The EV kit accepts differential or single-ended input signals, and provides fully differential outputs. The EV kit provides an option to select between +13dB, +16dB, +19.1dB, or +29.6dB gains. The MAX9741 EV kit offers an option to select between fixed-frequency modulation (FFM) mode or spread-spectrum modulation (SSM) mode.

Applications

Automotive
Desktop PCs
LCD Monitors
LCD Projectors
LCD TVs

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