MAX4411EBE+CAN

Audio Amplifiers Overview

The MAX4411EBE+CAN is a fixed-gain, stereo Class AB headphone amplifier designed for portable equipment. It utilizes DirectDrive architecture to produce ground-referenced outputs from a single supply, eliminating bulky DC-blocking capacitors. The device operates on a 1.8V to 3.6V supply with a typical quiescent current of 5mA per channel. It delivers up to 80mW per channel into a 16Ω load with 0.003% THD+N. Key specifications include an internal gain of -1.5V/V, 86dB PSRR at 217Hz, and ±8kV ESD protection on outputs.

Audio Amplifiers Feature Summary

• DirectDrive architecture eliminates the need for large output-coupling capacitors by generating an internal negative supply rail.
• Internally fixed gain configuration removes the requirement for external feedback networks.
• Ground-referenced outputs prevent DC-bias voltages on the headphone ground pin.
• Independent left/right shutdown controls optimize power consumption in mixed-mode applications.

Audio Amplifiers Applications

• Notebook PCs
• Cellular Phones
• PDAs
• MP3 Players
• Smart Phones

Audio Amplifiers Procurement Notes

Verify the component status as discontinued or obsolete through official manufacturer channels before finalizing design-in decisions. Confirm that the specific ordering suffix matches the required package type and temperature range. Ensure compliance with RoHS directives and check for any product change notices affecting availability or specifications.

Audio Amplifiers Selection Notes

Select this component when board space is limited and the elimination of large DC-blocking capacitors is required. It is suitable for single-supply portable audio systems operating between 1.8V and 3.6V. Consider the fixed -1.5V/V gain and low quiescent current for battery-powered applications requiring high power-supply rejection.

Audio Amplifiers Part Context

This part belongs to the MAX4411 series of stereo headphone drivers manufactured by Analog Devices Inc./Maxim Integrated. It is part of the DirectDrive family, which focuses on reducing external component counts and improving low-frequency response by removing coupling capacitors. The series includes variants like the MAX4411B with different gain settings.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative devices based on package dimensions, pinout, and electrical characteristics if sourcing from other manufacturers.

Audio Amplifiers FAQ

How does the DirectDrive architecture affect low-frequency response?

By eliminating large DC-blocking capacitors, the DirectDrive architecture prevents the formation of high-pass filters that typically attenuate low frequencies, thereby preserving the full audio bandwidth.

What is the function of the SHDNL and SHDNR pins?

These are active-low shutdown controls for the left and right channels respectively. Driving them low disables the channel, sets the output impedance to 1kΩ, and reduces supply current.