MAX9719DEBE+TG45

Audio Amplifiers Overview

The MAX9719DEBE+TG45 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. The device features a bridge-tied load (BTL) architecture, differential inputs for improved noise rejection, and internally fixed gain options including 6dB. It includes comprehensive click-and-pop suppression circuitry and a low-power shutdown mode that reduces quiescent current consumption to less than 100nA.

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, significantly reducing quiescent current consumption.

Audio Amplifiers Applications

• Mobile Phones
• PDAs
• Portable Devices

Audio Amplifiers Procurement Notes

Verify the specific suffix 'DEBE' against official manufacturer documentation to confirm package type, gain configuration, and temperature range. Confirm RoHS compliance status and lead-free specifications directly with the supplier or manufacturer datasheet before procurement. Ensure compatibility with existing PCB footprints and thermal management requirements.

Audio Amplifiers Selection Notes

Select this component for portable applications requiring stereo audio output with minimal external components. The internal fixed gain simplifies design compared to adjustable versions. Consider the 16-pin TQFN or UCSP package availability based on board space constraints. Verify thermal dissipation requirements for the intended operating conditions and load impedance.

Audio Amplifiers Part Context

This part belongs to the MAX9718/MAX9719 series of low-cost mono and stereo audio power amplifiers. The MAX9719 variant specifically provides dual-channel stereo operation, whereas the MAX9718 offers single-channel mono functionality. Both share similar electrical characteristics and packaging options within the same product family.

Audio Amplifiers Replacement Considerations

The MAX9718 is pin-compatible with the LM4895. For direct replacements within the same family, consider other MAX9719 variants with different gain settings or packages, such as MAX9719AETE+, ensuring functional equivalence in gain and interface.