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The MAX9779 combines a stereo, 2.6W audio power
amplifier and stereo DirectDrive™ 110mW headphone
amplifier in a single device. The headphone amplifier
uses Maxim's patented DirectDrive architecture that produces
a ground-referenced output from a single supply,
eliminating the need for large DC-blocking capacitors,
saving cost, space, and component height. A high 90dB
PSRR and low 0.01% THD+N ensures clean, low-distortion
amplification of the audio signal through the Class
AB speaker amplifiers.
The MAX9779 features a single-supply voltage, a shutdown
mode, logic-selectable gain, and a headphone
sense input. Industry-leading click-and-pop suppression
eliminates audible transients during power and
shutdown cycles.
The MAX9779 is offered in a space-saving, thermally efficient
28-pin thin QFN (5mm x 5mm x 0.8mm) package.
The device has thermal-overload and output short-circuit
protection, and is specified over the extended -40°C to
+85°C temperature range.
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