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 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.

FEATUREs
♦ No DC-Blocking Capacitors Required—Provides Industry’s Most Compact Notebook Audio Solution
♦ PC2001 Compliant
♦ 5V Single-Supply Operation
♦ Class AB 2.6W Stereo BTL Speaker Amplifiers
♦ 110mW DirectDrive Headphone Amplifiers
♦ High 90dB PSRR
♦ Low-Power Shutdown Mode
♦ Industry-Leading Click-and-Pop Suppression
♦ Low 0.01% THD+N at 1kHz
♦ Short-Circuit and Thermal Protection
♦ Selectable Gain Settings
♦ Analog Volume Control (MAX9750)
♦ Beep Input with Glitch Filter (MAX9750)
♦ 2:1 Stereo Input MUX (MAX9751)
♦ ±8kV ESD-Protected Headphone Driver Outputs
♦ Available in Space-Saving, Thermally Efficient Packages
   28-Pin Thin QFN (5mm x 5mm x 0.8mm)
   28-Pin TSSOP

APPLICATIONs
  Notebook PCs
  Flat-Panel TVs
  Tablet PCs
  PC Displays
  Portable DVD Players
  LCD Projectors