MAX9719BEUE+

Audio Amplifiers Overview

The MAX9719BEUE+ is a dual-channel stereo audio power amplifier from the MAX9718/MAX9719 family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 2.7V to 5.5V and delivers 1.4W of continuous average power per channel into a 4Ω load with less than 1% THD+N at a +5V supply. The device features a bridge-tied load (BTL) architecture, differential inputs for improved noise rejection, and an internally fixed gain of 0dB. It includes a low-power shutdown mode reducing quiescent current to under 100nA, comprehensive click-and-pop suppression, and thermal protection. The component is housed in a 16-pin TSSOP-EP package and operates within a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Bridge-tied load (BTL) architecture eliminates DC-blocking capacitors and doubles output voltage swing compared to single-ended configurations.
• Differential input structure provides high common-mode rejection and improves noise immunity for portable audio applications.
• Integrated industry-leading click-and-pop suppression circuitry minimizes audible transients during power-up and shutdown sequences.
• Low-power shutdown mode reduces quiescent current consumption to less than 100nA, extending battery life in portable devices.

Audio Amplifiers Applications

• Mobile phones
• Personal digital assistants (PDAs)
• Portable electronic devices

Audio Amplifiers Procurement Notes

Verify the specific suffix BEUE against official manufacturer documentation to confirm the exact pinout, gain configuration, and package variant. Ensure compatibility with the target PCB footprint and thermal requirements. Confirm RoHS compliance status and check for any recent product change notices or obsolescence alerts directly from Analog Devices before finalizing procurement plans.

Audio Amplifiers Selection Notes

Select this component for stereo speaker amplification where space efficiency and low distortion are critical. The fixed 0dB gain simplifies external circuit design by removing the need for gain-setting resistors. Consider the 16-pin TSSOP-EP package for its exposed pad thermal dissipation capabilities. Verify that the application's supply voltage remains within the 2.7V to 5.5V operational range to ensure optimal performance and reliability.

Audio Amplifiers Part Context

The MAX9719BEUE+ belongs to the MAX9718/MAX9719 series of low-cost, mono/stereo audio power amplifiers designed for portable electronics. This series is characterized by its ability to deliver high-quality audio amplification with minimal external components. The MAX9719 specifically serves as the dual-channel counterpart to the single-channel MAX9718, offering stereo functionality while maintaining similar power efficiency and feature sets like BTL operation and shutdown modes.

Audio Amplifiers Replacement Considerations

The datasheet notes that the MAX9718 is pin-compatible with the LM4895. However, no direct substitute part numbers are explicitly listed for the MAX9719BEUE+ in the provided source material. Consult the manufacturer's selector guide for alternative packages or gain variants within the same family if pin compatibility is not required.