MAX9750AE

Product Summary

The MAX9750AE is a 2.6W Stereo Audio Power Amplifier and DirectDrive Headphone Amplifier. The device combines a stereo, 2.6W audio power amplifier and stereo DirectDrive 110mW headphone amplifier in a single device. The MAX9750AE 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. The applications of the MAX9750AE include Notebook PCs, Flat-Panel TVs, Tablet PCs, PC Displays, Portable DVD and LCD Projectors.

Parametrics

MAX9750AE absolute maximum ratings: (1)Supply Voltage (VDD, PVDD, HPVDD, CPVDD to GND): +6V; (2)GND to PGND: ±0.3V; (3)CPVSS, C1N, VSS to GND: -6.0V to (GND + 0.3V); (4)HPOUT_ to GND: ±3V; (5)Any Other Pin: -0.3V to (VDD + 0.3V); (6)Duration of OUT_ Short Circuit to GND or PVDD: Continuous; (7)Duration of OUT_+ Short Circuit to OUT_-: Continuous; (8)Duration of HPOUT_ Short Circuit to GND, VSS or HPVDD: Continuous; (9)Continuous Current (PVDD, OUT_, PGND): 1.7A; (10)Continuous Current (CPVDD, C1N, C1P, CPVSS, VSS, HPVDD, HPOUT_): 850mA; (11)Continuous Input Current (All Other Pins): ±20mA; (12)Continuous Power Dissipation: 1667mW; (13)Junction Temperature: +150℃; (14)Operating Temperature Range: -40℃ to +85℃; (15)Storage Temperature Range: -65℃ to +150℃; (16)Lead Temperature (soldering, 10s): +300℃.

Features

MAX9750AE features: (1)No DC-Blocking Capacitors Required—Provides Industry’s Most Compact Notebook Audio Solution; (2)PC2001 Compliant; (3)5V Single-Supply Operation; (4)Class AB 2.6W Stereo BTL Speaker Amplifiers; (5)110mW DirectDrive Headphone Amplifiers; (6)High 90dB PSRR; (7)Low-Power Shutdown Mode; (8)Industry-Leading Click-and-Pop Suppression; (9)Low 0.01% THD+N at 1kHz; (10)Short-Circuit and Thermal Protection; (11)Selectable Gain Settings; (12)Analog Volume Control; (13)Beep Input with Glitch Filter; (14)±8kV ESD-Protected Headphone Driver Outputs.

Diagrams