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MAX4409 Datasheet Stereo Headphone Amplifier

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-2842; Rev 0; 4/03 .. 80mW, DirectDrive, Stereo Headphone Amplifier with mon-Mode.

General Description

The MAX4409 stereo headphone amplifier bines Maxim’s DirectDrive architecture and a mon-mode sense input, which allows the amplifier to reject mon-mode noise.

Conventional headphone amplifiers require a bulky DC-blocking capacitor between the headphone and the amplifier.

DirectDrive produces a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, which saves cost, board space, and ponent height.

Key Features

  • o No Bulky DC-Blocking Capacitors Required o Ground-Referenced Outputs Eliminate DC-Bias Voltages on Headphone Ground Pin o Common-Mode Voltage Sensing Eliminates Ground-Loop Noise o 96dB CMRR o No Degradation of Low-Frequency Response Due to Output Capacitors o 80mW per Channel into 16Ω o Low 0.002% THD+N o High 86dB PSRR o Integrated Click-and-Pop Suppression o 1.8V to 3.6V Single-Supply Operation o Low Quiescent Current o Low-Power Shutdown Mode o Short-Circuit and Thermal-Overload Protection.

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MAX4409 Distributor