MAX9719AEBE+T

Audio Amplifiers Overview

The MAX9719AEBE+T is a stereo audio power amplifier from the MAX9718/MAX9719 family, designed for portable devices. It operates on a single supply voltage ranging from 2.7V to 5.5V and delivers 1.4W 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 0dB, 3dB, and 6dB. It includes a low-power shutdown mode reducing quiescent current to under 100nA and comprehensive click-and-pop suppression circuitry.

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.
• Internal fixed gain options reduce component count and simplify design requirements.
• Comprehensive click-and-pop suppression circuitry reduces audible artifacts during startup and shutdown.

Audio Amplifiers Applications

• Mobile Phones
• PDAs
• Portable Devices

Audio Amplifiers Procurement Notes

Verify the specific suffix 'BE' against official manufacturer documentation to confirm package type and temperature range specifications. Ensure compatibility with the required PCB footprint and thermal management strategy, as the exposed pad must be connected to ground for optimal performance. Confirm RoHS compliance status through the datasheet or ordering information section before finalizing procurement.

Audio Amplifiers Selection Notes

Select this model for stereo applications requiring high output power in a compact form factor. The internal fixed gain simplifies the design by eliminating external resistors. Consider the BTL configuration advantages over single-ended designs for increased output voltage swing without DC-blocking capacitors. Evaluate thermal dissipation requirements based on the chosen package and ambient operating conditions.

Audio Amplifiers Part Context

This component belongs to the MAX9718/MAX9719 series of low-cost mono and stereo audio power amplifiers manufactured by Analog Devices Inc./Maxim Integrated. The MAX9719 variant specifically provides dual-channel stereo amplification, whereas the MAX9718 offers single-channel mono operation. Both share similar electrical characteristics and are optimized for battery-powered portable electronics.

Audio Amplifiers Replacement Considerations

The MAX9718 is pin-compatible with the LM4895. Verify if the LM4895 meets the specific gain and power requirements for the intended application when considering substitution.