MAX9724AEUD+T

Audio Amplifiers Overview

The MAX9724AEUD+T is a stereo headphone amplifier utilizing DirectDrive architecture for single-supply operation. It delivers up to 60mW per channel into a 32Ω load with 0.02% THD+N. Operating from 2.7V to 5.5V, it consumes 3.5mA quiescent current and features adjustable gain. The device includes integrated click-and-pop suppression, thermal protection, and an 80dB PSRR at 1kHz. It operates within a -40°C to +85°C temperature range.

Audio Amplifiers Feature Summary

• DirectDrive architecture eliminates bulky DC-blocking capacitors by generating an internal negative supply via a charge pump.
• Integrated RF noise rejection prevents demodulation of coupled interference on input and supply traces.
• Comprehensive click-and-pop suppression circuitry removes audible transients during startup and shutdown transitions.

Audio Amplifiers Applications

• Cellular Phones
• MP3 Players
• Notebook PCs
• Handheld Gaming Consoles

Audio Amplifiers Procurement Notes

Verify the specific suffix 'EUD' against official documentation to confirm package type and tape/reel configuration. Ensure compatibility with the required gain setting for the MAX9724A variant. Confirm RoHS compliance status through manufacturer datasheets before finalizing procurement specifications.

Audio Amplifiers Selection Notes

Select this component for portable designs requiring minimal board space due to the elimination of large output capacitors. The adjustable gain feature allows flexibility in signal conditioning. Verify that the UCSP or TQFN package fits the available footprint constraints while meeting thermal dissipation requirements for the target application.

Audio Amplifiers Part Context

This part belongs to the MAX9724 family of low-power stereo headphone amplifiers. It shares the core DirectDrive technology with variants like the MAX9724B, which has fixed gain. The family targets battery-powered audio applications where size and power efficiency are critical design parameters.

Audio Amplifiers Replacement Considerations

MAX9724BEUD+T (Fixed Gain)

Audio Amplifiers FAQ

How does the DirectDrive architecture affect external components?

It generates an internal negative supply using a charge pump, eliminating the need for large DC-blocking capacitors typically required by conventional single-supply amplifiers.

What is the function of the SHDN pin?

The SHDN pin controls the low-power shutdown mode. Driving it low disables the amplifiers and charge pump, reducing current consumption to less than 0.1µA.