MAX9724DETC+T

Audio Amplifiers Overview

The MAX9724DETC+T is a stereo headphone amplifier utilizing DirectDrive architecture to eliminate bulky DC-blocking capacitors. It operates from a single 2.5V to 5.5V supply, delivering up to 60mW per channel into a 32Ω load with 0.02% THD+N. The device features an internally fixed gain of -1.5V/V and includes integrated click-and-pop suppression. It offers low RF susceptibility, high PSRR (80dB at 1kHz), and consumes only 3.5mA quiescent current. Available in a 12-pin thin QFN package.

Audio Amplifiers Feature Summary

• DirectDrive architecture eliminates the need for large output-coupling 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.
• Low-power shutdown mode reduces current consumption to less than 0.1µA when disabled.
• Comprehensive protection mechanisms include thermal-overload and short-circuit safeguards.

Audio Amplifiers Applications

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

Audio Amplifiers Procurement Notes

Verify that the ordering suffix +T indicates tape and reel packaging. Confirm the part number corresponds to the MAX9724D variant with fixed -1.5V/V gain. Ensure the package type matches the 12-pin thin QFN specification. Check for lead-free compliance markings as indicated by the '+' designation.

Audio Amplifiers Selection Notes

Select this component for portable designs requiring minimal board space due to the absence of external DC-blocking capacitors. Choose the MAX9724D over the MAX9724C if a fixed gain of -1.5V/V is desired to simplify the circuit design. Ensure the application environment stays within the specified -40°C to +85°C operating temperature range.

Audio Amplifiers Part Context

This device belongs to the MAX9724C/MAX9724D family of low RF susceptibility DirectDrive stereo headphone amplifiers manufactured by Maxim Integrated. The family shares core architectural features but differs in gain configuration and package options. The MAX9724D specifically provides a fixed internal gain setting.

Audio Amplifiers Replacement Considerations

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