MAX9719AETE+T

Audio Amplifiers Overview

The MAX9719AETE+T is a stereo audio power amplifier from the MAX9718/MAX9719 family, designed for portable devices with internal speakers. 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 at 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. 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 providing high-quality audio amplification.
• Differential input structure improves noise rejection and provides common-mode rejection capabilities.
• Comprehensive click-and-pop suppression circuitry reduces audible artifacts during startup and shutdown sequences.
• Low-power shutdown mode disables bias generators and amplifiers to reduce quiescent current consumption significantly.

Audio Amplifiers Applications

• Mobile Phones
• Personal Digital Assistants (PDAs)
• Portable Audio Devices

Audio Amplifiers Procurement Notes

Verify the specific suffix 'E' indicates the 16-pin TQFN package variant when sourcing. Confirm RoHS compliance status as indicated by the '+' designation in the part number. Ensure the ordering code matches the required temperature range of -40°C to +85°C. Cross-reference the manufacturer's latest documentation for any potential obsolescence notices or lifecycle changes associated with this specific package type.

Audio Amplifiers Selection Notes

Select this model for stereo applications requiring differential inputs and BTL output configuration. Choose this variant over adjustable gain versions if fixed gain operation is sufficient for the system design. Consider the thermal dissipation requirements of the 16-pin TQFN package when designing the PCB layout. Verify that the supply voltage range of 2.7V to 5.5V aligns with the system's power budget.

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 series is optimized for portable audio devices, offering high efficiency and low distortion. The MAX9719 specifically serves as the dual-channel counterpart to the single-channel MAX9718, sharing similar architectural features and performance characteristics within the same product family.

Audio Amplifiers Replacement Considerations

The MAX9718 is pin-compatible with the LM4895, though this applies to the mono version. No direct public substitute part numbers are confirmed for the MAX9719AETE+T in the provided documentation.