Overview
Features and Benefits
- 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
Product Details
The MAX9741 stereo Class D audio power amplifier provides Class AB amplifier performance with Class D efficiency, conserving board space and eliminating the need for a bulky heatsink. Using a Class D architecture, the MAX9741 delivers 12W continuous output power into 8Ω loads. Modulation and switching schemes render the traditional Class D EMI suppression output filter unnecessary.
The MAX9741 offers two modulation schemes: a fixed-frequency mode (FFM), and a spread-spectrum mode (SSM) that reduces EMI-radiated emissions due to the modulation frequency. The device utilizes a fully differential architecture, a full bridged output, and offers comprehensive click-and-pop suppression.
The MAX9741 features high 80dB PSRR, low 0.07% THD+N, and SNR in excess of 100dB. Short-circuit and thermal-overload protection prevent the device from being damaged during a fault condition. The MAX9741 is available in a 56-pin TQFN (8mm x 8mm x 0.8mm) package. The MAX9741 is specified over the extended -40°C to +85°C temperature range.
Applications
- Automotive
- Desktop PCs
- LCD Monitors
- LCD Projectors
- LCD TVs
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Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
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