U4083B-MFPG3Y 19

Overview

The U4083B-MFPG3Y is a low-power audio amplifier for telephone loudspeakers, manufactured by Microchip Technology (formerly Atmel). It features differential speaker outputs to maximize output swing at low supply voltages and eliminates the need for coupler capacitors. The device operates within a wide voltage range of 2V to 16V with typical current consumption of 2.7 mA. It delivers an output power of 250 mW into a 32Ω load with typically 0.5% harmonic distortion. The chip includes a disable input for power-down or muting functions.

Feature Summary

• Differential speaker outputs designed to maximize output swing at low supply voltages without requiring external coupling capacitors
• Integrated chip disable pin allows for power-down operation or input signal muting to conserve energy
• Low quiescent current consumption suitable for battery-powered applications
• Capable of driving a wide range of speaker loads with low harmonic distortion

Applications

• Telephone loudspeaker amplification
• Voice band audio circuits
• Battery-powered communication devices

Procurement Notes

Verify that the ordering suffix MFPG3Y corresponds to the SO8 package in Taped and Reeled format as specified in the official documentation. Confirm the component is sourced from authorized channels to ensure authenticity. Check for any specific handling requirements associated with the tape and reel packaging during assembly.

Selection Notes

Select this component for designs requiring a simple, low-component-count audio amplifier solution. It is suitable for applications where differential drive is preferred to improve performance at lower supply voltages. Ensure the load impedance falls within the recommended operating range of 8Ω to 100Ω for optimal performance.

Part Context

This part belongs to the U4083B family of low-power audio amplifiers. The U4083B series is specifically engineered for telephone applications, offering high open-loop gain and flexible gain adjustment via external resistors. The device integrates two operational amplifiers, with one set to unity gain internally.

Replacement Considerations

U4083B-MFPY is a compatible alternative in the same SO8 package but supplied in Tube format instead of Tape and Reel.