MAX9719DEBE+T

Audio Amplifiers Overview

The MAX9719DEBE+T is a 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 internally fixed gain options including 6dB for the DE suffix. It includes a low-power shutdown mode reducing quiescent current to under 100nA, comprehensive click-and-pop suppression, and thermal protection.

Audio Amplifiers Feature Summary

• Bridge-tied load (BTL) architecture minimizes external component count while delivering high-quality audio amplification.
• Differential input structure improves noise rejection and provides common-mode rejection capabilities.
• Integrated industry-leading click-and-pop suppression circuitry reduces audible artifacts during startup and shutdown.
• Low-power shutdown mode disables bias generators and amplifiers to reduce quiescent current consumption.

Audio Amplifiers Applications

• Mobile phones
• Personal Digital Assistants (PDAs)
• Portable electronic devices

Audio Amplifiers Procurement Notes

Verify the specific ordering suffix 'DE' corresponds to the required internal gain setting and package configuration before procurement. Confirm that the UCSP-16 package variant matches the intended PCB layout requirements. Ensure compatibility with the system's logic levels and supply voltage range. Cross-reference the manufacturer's latest datasheet revision to confirm pinout and electrical characteristics remain unchanged.

Audio Amplifiers Selection Notes

Select this model when a stereo BTL amplifier is required for portable applications with limited board space. The fixed 6dB gain option simplifies design by eliminating external feedback resistors. Consider the UCSP-16 package for compact form factors. Verify that the 2.7V to 5.5V supply range aligns with the system's battery or power rail specifications.

Audio Amplifiers Part Context

The MAX9719DEBE+T belongs to the MAX9718/MAX9719 series of low-cost, mono/stereo audio power amplifiers designed for portable devices. The MAX9719 variant specifically provides dual-channel stereo amplification. This series is engineered to replace older solutions like the LM4895, offering improved performance in a smaller footprint with enhanced power efficiency and audio quality.

Audio Amplifiers Replacement Considerations

The MAX9718 is pin-compatible with the LM4895. For direct stereo replacements within the same family, consider the MAX9719AETE+T or MAX9719BETE+T, ensuring gain settings and package types match the application requirements.