MAX9719DEUE+T

Audio Amplifiers Overview

The MAX9719DEUE+T is a stereo audio power amplifier in a 16-pin TSSOP-EP package. It operates on a single supply 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 5V. The device features internally fixed gain of 6dB, differential inputs for improved noise rejection, and a bridge-tied load architecture. It includes comprehensive click-and-pop suppression and a low-power shutdown mode reducing quiescent current to under 100nA.

Audio Amplifiers Feature Summary

• Bridge-tied load (BTL) architecture eliminates the need for DC-blocking output capacitors.
• Integrated industry-leading click-and-pop suppression circuitry minimizes audible transients during power-up and shutdown.
• Low-power shutdown mode reduces quiescent current consumption to less than 100nA.
• Differential input structure provides high common-mode rejection and improves noise immunity.

Audio Amplifiers Applications

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

Audio Amplifiers Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging as specified in the manufacturer's documentation. Confirm the 'E' suffix indicates the specific 16-pin TSSOP-EP package variant. Ensure the component meets RoHS compliance standards required for your assembly process. Cross-reference the full part number against the official selector guide to validate the fixed gain configuration.

Audio Amplifiers Selection Notes

Select this component when a stereo BTL amplifier is required for portable applications. The internal 6dB fixed gain simplifies design by removing external feedback resistors. Verify that the 4Ω speaker impedance matches the 1.4W power rating specifications. Ensure the system supply voltage remains within the 2.7V to 5.5V operational range for optimal performance.

Audio Amplifiers Part Context

This device belongs to the MAX9718/MAX9719 family of low-cost mono and stereo audio amplifiers. While the MAX9718 is a single-channel unit, the MAX9719 provides dual channels for stereo systems. Both share similar architectural features, including BTL operation and thermal protection, but differ in channel count and pin configurations suitable for their respective mono or stereo implementations.

Audio Amplifiers Replacement Considerations

The MAX9719AEUE+ is a pin-compatible alternative within the same family offering adjustable gain instead of fixed gain. Designers should verify that the gain requirements of the application can accommodate the difference between fixed and adjustable configurations before substituting.