Part # MAX9709 datasheet

Part Manufacturer: Maxim


Part Description: MAX9709 DS

Part Details:

19-3769; Rev 1; 5/08 EVALUATION KIT AVAILABLE 25W/50W, Filterless, Spread-Spectrum, Stereo/Mono, Class D Amplifier MAX9709 General Description Features The MAX9709 stereo/mono, Class D audio power amplifi- 2 x 25W Output Power in Stereo Mode er delivers up to 2 x 25W into an 8 stereo mode and (8, THD = 10%) 1 x 50W into a 4 load in mono mode while offering up to 1 x 50W Output Power in Mono Mode 87% efficiency. The MAX9709 provides Class AB amplifi- (4, THD = 10%) er performance with the benefits of Class D efficiency, High Efficiency: Up to 87% eliminating the need for a bulky heatsink and conservingpower. The MAX9709 operates from a single +10V to Filterless Class D Amplifier +22V supply, driving the load in a BTL configuration. Unique Patented Spread-Spectrum Mode The MAX9709 offers two modulation schemes: a fixed-fre- Programmable Gain (+22dB, +25dB, +29.5dB, quency modulation (FFM) mode, and a spread-spectrum +36dB) modulation (SSM) mode that reduces EMI-radiated emis- High PSRR (90dB at 1kHz) sions. The MAX9709 can be synchronized to an external Differential Inputs Suppress Common-Mode clock from 600kHz to 1.2MHz. A synchronized output Noise allows multiple units to be cascaded in the system. Shutdown and Mute Control Features include fully differential inputs, comprehensiveclick-and-pop suppression, and four selectable-gain set- Integrated Click-and-Pop Suppression tings (22dB, 25dB, 29.5dB, and 36dB). A pin-program- Low 0.1% THD+N mable thermal flag provides seven different thermal Current Limit and Thermal Protection warning thresholds. Short-circuit and thermal-overload Programmable Thermal Flag protection prevent the device from being damaged during a fault condition. Clock Synchronization Input and Output Available in Thermally Efficient, Space-Saving The MAX9709 is available in a 56-pin TQFN (8mm x Package: 56-Pin TQFN 8mm x 0.8mm) package, and is specified over theextended -40°C to +85°C temperature range. Ordering Information Applications PART TEMP RANGE PIN-PACKAGE

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MAX9709.pdf Datasheet