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MAX9703 Dataheets PDF



Part Number MAX9703
Manufacturers Maxim
Logo Maxim
Description 15W / Filterless / Spread-Spectrum Mono/Stereo Class D Amplifiers
Datasheet MAX9703 DatasheetMAX9703 Datasheet (PDF)

19-3160; Rev 7; 3/06 www.DataSheet4U.com 10W Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers General Description The MAX9703/MAX9704 mono/stereo Class D audio power amplifiers provide Class AB amplifier performance with Class D efficiency, conserving board space and eliminating the need for a bulky heatsink. Using a Class D architecture, these devices deliver up to 15W while offering up to 78% efficiency. Proprietary and patent-protected modulation and switching schemes render.

  MAX9703   MAX9703



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19-3160; Rev 7; 3/06 www.DataSheet4U.com 10W Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers General Description The MAX9703/MAX9704 mono/stereo Class D audio power amplifiers provide Class AB amplifier performance with Class D efficiency, conserving board space and eliminating the need for a bulky heatsink. Using a Class D architecture, these devices deliver up to 15W while offering up to 78% efficiency. Proprietary and patent-protected modulation and switching schemes render the traditional Class D output filter unnecessary. The MAX9703/MAX9704 offer 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 comprehensive click-and-pop suppression. The MAX9703/MAX9704 feature high 80dB PSRR, low 0.07% THD+N, and SNR in excess of 95dB. Short-circuit and thermal-overload protection prevent the devices from being damaged during a fault condition. The MAX9703 is available in a 32-pin TQFN (5mm x 5mm x 0.8mm) package. The MAX9704 is available in a 32-pin TQFN (7mm x 7mm x 0.8mm) package. Both devices are specified over the extended -40°C to +85°C temperature range. Features ♦ Filterless Class D Amplifier ♦ Unique Spread-Spectrum Mode Offers 5dB Emissions Improvement Over Conventional Methods ♦ Up to 78% Efficient (RL = 8Ω) ♦ Up to 88% Efficient (RL = 16Ω) ♦ 15W Continuous Output Power into 8Ω (MAX9703) ♦ 2x10W Continuous Output Power into 8Ω (MAX9704) ♦ 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 Packages 32-Pin TQFN (5mm x 5mm x 0.8mm)–MAX9703 32-Pin TQFN (7mm x 7mm x 0.8mm)–MAX9704 MAX9703/MAX9704 Applications LCD TVs LCD Monitors Desktop PCs LCD Projectors Hands-Free Car Phone Adaptors Automotive Ordering Information PART MAX9703ETJ+ MAX9704ETJ+ TEMP RANGE -40 C to +85 C -40oC to +85oC o o PIN-PACKAGE 32 TQFN-EP* 32 TQFN-EP* AMP Mono Stereo *EP = Exposed paddle. +Denotes lead-free package. Block Diagrams 0.47µF INL+ H-BRIDGE INL- MAX9704 OUTL+ MAX9703 0.47µF 0.47µF IN+ H-BRIDGE INOUTOUT+ 0.47µF OUTL- 0.47µF 0.47µF INR+ H-BRIDGE INR- OUTR+ OUTR- Pin Configurations appear at end of data sheet. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. www.DataSheet4U.com 10W Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers MAX9703/MAX9704 ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) VDD to PGND, AGND .............................................................30V OUTR_, OUTL_, C1N..................................-0.3V to (VDD + 0.3V) C1P............................................(VDD - 0.3V) to (CHOLD + 0.3V) CHOLD ........................................................(VDD - 0.3V) to +40V All Other Pins to GND.............................................-0.3V to +12V Duration of OUTR_/OUTL_ Short Circuit to GND, VDD ..................................................10s Continuous Input Current (VDD, PGND) ...............................1.6A Continuous Input Current......................................................0.8A Continuous Input Current (all other pins)..........................±20mA Continuous Power Dissipation (TA = +70°C) Single-Layer Board: MAX9703 32-Pin TQFN (derate 21.3mW/°C above +70°C)..........................................................1702.1mW MAX9704 32-Pin TQFN (derate 27mW/°C above +70°C)..........................................................2162.2mW Multilayer Board: MAX9703 32-Pin TQFN (derate 34.5mW/°C above +70°C)..........................................................2758.6mW MAX9704 32-Pin TQFN (derate 37mW/°C above +70°C)..........................................................2963.0mW Junction Temperature ......................................................+150°C Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VDD = 15V, G.


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