MAX9723AEBE+T

Audio Amplifiers Overview

The MAX9723AEBE+T is a stereo DirectDrive headphone amplifier from Analog Devices/Maxim Integrated. It operates on a single 1.8V to 3.6V supply and delivers 62mW into a 16Ω load with 0.006% THD+N. The device features an integrated 32-level volume control, software-enabled BassMax, and I2C/SMBus interface. It utilizes a charge pump for ground-referenced outputs, eliminating DC-blocking capacitors. Quiescent current is 3.7mA at 1.8V, with a low-power shutdown mode consuming 5μA. It includes ±8kV HBM ESD protection and short-circuit/thermal overload protection.

Audio Amplifiers Feature Summary

• DirectDrive architecture eliminates bulky DC-blocking output capacitors by generating an internal negative supply via a charge pump.
• Integrated digital volume control offers 32 discrete levels managed through an I2C-compatible serial interface.
• BassMax feature boosts bass response to compensate for low-frequency attenuation in standard headphones.
• Industry-leading click-and-pop suppression circuitry prevents audible transients during power-up and shutdown.

Audio Amplifiers Applications

• PDA Audio
• Portable CD Players
• Mini Disc Players
• MP3-Enabled Cellular Phones
• MP3 Players

Audio Amplifiers Procurement Notes

Verify the specific suffix 'A' indicates a maximum gain of 0dB and the 'EBE' denotes the 16-bump UCSP package. Confirm RoHS compliance via the '+' designation. Check current production status as Maxim Integrated products may face discontinuance or limited availability. Ensure the design supports the required I2C addressing for the A variant.

Audio Amplifiers Selection Notes

Select this component for space-constrained portable audio designs requiring high fidelity without external coupling capacitors. The MAX9723A variant provides a fixed 0dB maximum gain, suitable for line-level inputs. Consider the UCSP package for minimal footprint requirements. Verify that the system can accommodate the I2C bus connections and external BassMax filter components if bass enhancement is utilized.

Audio Amplifiers Part Context

The MAX9723 series comprises stereo DirectDrive headphone amplifiers with integrated volume control and BassMax. Variants include MAX9723A/B (0dB max gain) and MAX9723C/D (+6dB max gain). Packages available are the 16-bump UCSP and 16-pin Thin QFN. The MAX9723AEBE+T specifically refers to the 0dB gain version in the UCSP package.

Audio Amplifiers Replacement Considerations

Public confirmed substitutes include MAX9723BEBE+T, MAX9723CEBE+T, and MAX9723DEBE+T. These share identical pinouts and functionality but differ in maximum programmable gain settings.