Part # MAX9708 datasheet

Part Manufacturer: Maxim


Part Description: MAX9708 DS

Part Details:

19-3678; Rev 2; 3/06 EVALUATION KIT AVAILABLE 20W/40W, Filterless, Spread-Spectrum, Mono/Stereo, Class D Amplifier MAX9708 General Description Features The MAX9708 mono/stereo, Class D audio power amplifi- 2 x 21W Output Power in Stereo Mode er delivers up to 2 x 21W into an 8 stereo mode and (8, THD = 10%) 1 x 42W into a 4 load in mono mode while offering up to 1 x 42W Output Power in Mono Mode 87% efficiency. The MAX9708 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 MAX9708 operates from a single +10V to Filterless Class D Amplifier +18V supply, driving the load in a BTL configuration. Unique Patented Spread-Spectrum Mode The MAX9708 offers two modulation schemes: a fixed- Programmable Gain (+22dB, +25dB, +29.5dB, frequency modulation (FFM) mode, and a spread-spec- +36dB) trum modulation (SSM) mode that reduces High PSRR (90dB at 1kHz) EMI-radiated emissions. The MAX9708 can be synchro- Differential Inputs Suppress Common-Mode nized to an external clock from 600kHz to 1.2MHz. A Noise synchronized output allows multiple units to be cascad-ed in the system. Shutdown and Mute Control Features include fully differential inputs, comprehensive Integrated Click-and-Pop Suppression click-and-pop suppression, and four selectable-gain set- Low 0.1% THD+N tings (22dB, 25dB, 29.5dB, and 36dB). A pin-program- Current Limit and Thermal Protection mable thermal flag provides seven different thermal Programmable Thermal Flag warning thresholds. Short-circuit and thermal-overload protection prevent the device from being damaged SYNC Input/Output during a fault condition. Available in Thermally Efficient, Space-Saving Packages: 56-Pin TQFN and 64-Pin TQFP The MAX9708 is available in 56-pin TQFN (8mm x 8mmx 0.8mm) and 64-pin TQFP (10mm x 10mm x 1.4mm) Ordering Information packages, and is specified over the extended -40°C to +85°C temperature range. PKG PART TEMP RANGE

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MAX9708.pdf Datasheet