Document
19-3006; Rev 8; 6/08
EVALUATION KIT AVAILABLE
2.6W Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers
MAX9750/MAX9751/MAX9755
General Description
The MAX9750/MAX9751/MAX9755 combine a stereo, 2.6W audio power amplifier and stereo DirectDrive® 110mW headphone amplifier in a single device. The headphone amplifier uses Maxim’s 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.
The MAX9750 features an analog volume control, and a BEEP input. The MAX9751 features a 2:1 input multiplexer, allowing multiple audio sources to be selected. All devices feature a single-supply voltage, a shutdown mode, logicselectable gain, and a headphone sense input. Industryleading click-and-pop suppression eliminates audible transients during power and shu.