MAX9763EUI+

Audio Amplifiers Overview

The MAX9763EUI+ is a stereo audio amplifier from the MAX9760–MAX9763 family, manufactured by Analog Devices Inc./Maxim Integrated. It integrates a 3W bridge-tied load (BTL) speaker amplifier and a 200mW single-ended headphone amplifier within a single 28-pin TSSOP-EP package. The device operates on a single 4.5V to 5.5V supply and features an industry-leading 100dB power-supply rejection ratio (PSRR). Key electrical parameters include a quiescent current of 13mA in active mode and a shutdown current of 10µA. Total harmonic distortion plus noise (THD+N) is specified at 0.002% for headphone operation and 0.005% for speaker operation.

Audio Amplifiers Feature Summary

• Integrates a 3W BTL stereo speaker amplifier and a 200mW stereo headphone amplifier with automatic headphone sensing capability.
• Features ultra-low 0.002% THD+N and industry-leading 100dB PSRR for high-fidelity audio performance without requiring external linear regulators.
• Includes comprehensive click-and-pop suppression to eliminate audible transients during power-up and shutdown cycles.
• Provides flexible control via a parallel interface and incorporates a 2:1 input multiplexer for selecting between multiple audio sources.

Audio Amplifiers Applications

• Notebooks
• Portable DVD Players
• Tablet PCs
• PC Audio Peripherals
• Camcorders

Audio Amplifiers Procurement Notes

Verify the specific suffix 'EUI+' corresponds to the 28-pin TSSOP-EP package and -40°C to +85°C temperature range as documented in the official datasheet. Confirm that the I2C-compatible or parallel interface requirements match the MAX9763 variant specifications. Ensure compatibility with the required 4.5V to 5.5V single supply voltage for your target application design.

Audio Amplifiers Selection Notes

Select the MAX9763EUI+ when a compact solution is needed for both speaker and headphone driving in portable electronics. This model utilizes a parallel control interface rather than the serial I2C interface found in other family members like the MAX9760. Consider the 28-pin TSSOP-EP package for its thermal efficiency and small footprint compared to larger QFN options.

Audio Amplifiers Part Context

The MAX9763EUI+ belongs to the MAX9760–MAX9763 family of stereo 3W audio power amplifiers. These devices are designed to combine speaker amplification, headphone drive, input multiplexing, and headphone sensing into a tiny package. The family supports both serial I2C and parallel control interfaces, offering flexibility for various system architectures.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's product selector guide for alternative components within the MAX9760–MAX9763 family or newer generations if this specific part number is discontinued or unavailable.