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MAX9723BETE+ is listed in the Audio Amplifiers range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC AMP CLASS AB STER 60MW 16TQFN. Review the specifications below when checking this part for your BOM.
Audio Amplifiers specifications for MAX9723BETE+
- Description：IC AMP CLASS AB STER 60MW 16TQFN
- Series：DirectDrive®
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Type：Class AB
- Output Type：Headphones, 2-Channel (Stereo)
- Max Output Power x Channels @ Load：60mW x 2 @ 16Ohm
- Voltage - Supply：1.8V ~ 3.6V
- Features：Bass Boost, Depop, I2C, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
- Mounting Type：Surface Mount
- Supplier Device Package：16-TQFN (4x4)
- Package / Case：16-WQFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
Audio Amplifiers datasheet and documents for MAX9723BETE+
Audio Amplifiers Overview
The MAX9723BETE+ is a stereo DirectDrive headphone amplifier operating from a single 1.8V to 3.6V supply. It delivers 62mW into a 16Ω load with 0.006% THD+N and 90dB PSRR at 1kHz. The device features an integrated 32-level volume control, software-enabled BassMax, and I2C/SMBus interface. It includes industry-leading click-and-pop suppression, ±8kV HBM ESD protection, and low-power shutdown (5μA). Available in 16-pin Thin QFN packages.
Audio Amplifiers Feature Summary
- DirectDrive architecture eliminates bulky DC-blocking capacitors by producing ground-referenced outputs from a single supply.
- Integrated 32-level digital volume control and software-enabled BassMax boost via I2C/SMBus-compatible interface.
- Industry-leading click-and-pop suppression ensures minimal audible transients during power-up and shutdown transitions.
- Robust protection features include ±8kV HBM ESD-protected outputs, short-circuit protection, and thermal-overload protection.
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 'ETE+' indicates the lead-free/RoHS-compliant package variant. Confirm the slave address corresponds to the 'B' designation for proper I2C bus addressing. Ensure the ordering code matches the required 16-pin Thin QFN package type for your PCB layout constraints.
Audio Amplifiers Selection Notes
Select this component for space-constrained portable audio designs requiring high performance without external coupling capacitors. The 'B' suffix denotes a specific I2C slave address; verify compatibility if multiple amplifiers share the same bus. Consider the 0dB maximum gain setting when designing the signal chain for standard impedance headphones.
Audio Amplifiers Part Context
The MAX9723 series comprises stereo DirectDrive headphone amplifiers with BassMax and volume control. Variants A through D differ in I2C slave addresses and maximum programmable gain settings. The MAX9723B specifically utilizes a distinct slave address compared to other family members while maintaining identical functional characteristics and package options.
Audio Amplifiers Replacement Considerations
MAX9723AETE+
Audio Amplifiers FAQ
How does the DirectDrive architecture benefit board space?
It eliminates the need for large DC-blocking output capacitors by using an internal charge pump to create a negative supply, allowing ground-referenced outputs.
What is the function of the BassMax feature?
BassMax boosts the bass response of the amplifier to compensate for low-frequency attenuation inherent in small headphone diaphragms, improving audio reproduction.
How is the shutdown mode controlled?
Shutdown can be controlled via the hardware SHDN pin or through the software interface by resetting bit seven in the command register, reducing supply current to 5μA.
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