MAX9750BEUI

Audio Amplifiers Overview

The MAX9750BEUI is a stereo audio power amplifier and DirectDrive headphone amplifier manufactured by Analog Devices Inc./Maxim Integrated. It integrates a 2.6W Class AB stereo BTL speaker amplifier with a 110mW DirectDrive headphone amplifier in a single device. The unit operates on a 5V single supply, featuring high 90dB PSRR and low 0.01% THD+N for clean amplification. It utilizes patented DirectDrive architecture to produce ground-referenced outputs from a single supply, eliminating the need for large DC blocking capacitors. The component includes selectable gain settings, analog volume control, beep input with glitch filter, and short-circuit and thermal protection.

Audio Amplifiers Feature Summary

• Patented DirectDrive architecture eliminates the need for external DC-blocking capacitors, enabling compact designs.
• Integrates a 2.6W stereo Class AB speaker amplifier and a 110mW DirectDrive headphone amplifier.
• Features industry-leading click-and-pop suppression and high 90dB PSRR for signal integrity.
• Includes analog volume control, selectable gain settings, and beep input with glitch filter.

Audio Amplifiers Applications

• Notebook PCs
• Flat-Panel TVs
• Tablet PCs
• PC Displays
• Portable DVD Players

Audio Amplifiers Procurement Notes

Verify the specific suffix BEUI against official datasheets to confirm package type and temperature range. Confirm availability status as some variants may be discontinued or restricted. Ensure compatibility with 5V single-supply systems. Check RoHS compliance documentation. Validate pinout alignment with existing PCB layouts before procurement.

Audio Amplifiers Selection Notes

Select this component for applications requiring integrated speaker and headphone driving capabilities without external coupling capacitors. Ideal for space-constrained portable electronics where component height and board area are critical. Suitable for systems needing high power efficiency and low distortion audio output. Consider thermal management requirements for the TSSOP package in enclosed environments.

Audio Amplifiers Part Context

The MAX9750 belongs to the DirectDrive family of audio amplifiers designed for portable multimedia devices. It combines power amplification and headphone driving functions into one IC, reducing bill-of-materials count. The series is optimized for notebook and tablet form factors, offering PC2001 compliance and robust protection features against short circuits and thermal overload.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Verify cross-reference options through official manufacturer channels if direct replacement is required.

Audio Amplifiers FAQ

Does the MAX9750 require external DC-blocking capacitors?

No, the MAX9750 uses patented DirectDrive architecture that produces a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors.

What is the maximum power output for the speaker amplifier?

The MAX9750 provides up to 2.6W of stereo power for the Class AB BTL speaker amplifier when operating on a 5V single supply.