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19-0606; Rev 0; 9/06
Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiers
General Description
The MAX9789A/MAX9790A combine a stereo, 2W Class AB speaker power amplifier with a stereo 100mW DirectDrive™ headphone amplifier in a single device. The MAX9789A/MAX9790A are designed for use with the Microsoft Windows Vista™ operating system and are fully compliant with Microsoft’s Windows Vista specifications. The headphone amplifier features Maxim’s patented† DirectDrive architecture that produces a ground-referenced output from a single supply to eliminate the need for large DC-blocking capacitors, as well as save cost, board space, and component height. A high +90dB PSRR and low 0.