MAX9719AEUE+

Audio Amplifiers Overview

The MAX9719AEUE+ is a dual-channel Class-AB audio power amplifier designed for portable devices. 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 +5V. The device features differential inputs, internally fixed gain options, and a low-power shutdown mode consuming less than 100nA. It utilizes a bridge-tied load architecture and includes 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.
• Integrated industry-leading click-and-pop suppression circuitry reduces audible noise during startup and shutdown sequences.
• Low-power shutdown mode disables bias generators and amplifiers to reduce quiescent current consumption significantly.
• Differential input structure improves noise rejection and provides common-mode rejection capabilities.

Audio Amplifiers Applications

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

Audio Amplifiers Procurement Notes

Verify the specific suffix 'AEUE+' against the manufacturer's official ordering guide to confirm package type, temperature range, and lead-free status. Ensure compatibility with the required PCB footprint for the 16-pin TSSOP-EP package. Confirm that the internal fixed gain configuration matches the system design requirements before procurement.

Audio Amplifiers Selection Notes

Select this component for stereo applications requiring high output power in a compact form factor. The fixed gain version eliminates external resistors, reducing board space. Verify that the 1.4W per channel output meets the speaker impedance requirements. Consider the thermal dissipation characteristics if operating near maximum power levels or elevated temperatures.

Audio Amplifiers Part Context

This part belongs to the MAX9718/MAX9719 family of low-cost mono and stereo audio power amplifiers. While the MAX9718 is a single-channel device, the MAX9719 variant provides dual channels for stereo systems. Both share similar architectural features, including BTL operation and shutdown modes, but differ in channel count and pin configurations.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.