DESCRIPTION

· The U4083B is a low-power audio amplifier designed for telephone loudspeakers.

· It features differential speaker outputs to maximize output swing at low supply voltages.

· The amplifier has an open-loop gain of 80 dB, with closed-loop gain adjustable via external resistors.

· A chip disable pin allows for powering down or muting the input signal.

FEATURES

· Wide operating voltage range: 2V to 16V.

· Low current consumption: typically 2.7 mA.

· Chip disable input for powering down the IC.

· Low power-down quiescent current.

· Drives a wide range of speaker loads.

· Output power: 250 mW at 32 Ω.

· Low harmonic distortion: typically 0.5%.

· Wide gain range: 0 dB to 46 dB.

APPLICATIONS

· Telephone loudspeaker systems.

· Low-power audio amplification in telecommunication devices.