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Product Detailed Parameters
- Description：HEADPHONE AMPLIFIER WITH BASSMAX
- Series：DirectDrive®
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Bulk
- Type：Class AB
- Output Type：Headphones, 2-Channel (Stereo)
- Max Output Power x Channels @ Load：124mW x 2 @ 16Ohm
- Voltage - Supply：2.7V ~ 5.5V
- Features：-
- Mounting Type：Surface Mount
- Supplier Device Package：20-UCSP (2.03x2.54)
- Package / Case：20-WFBGA, CSPBGA
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The MAX9726AEBP+ is a stereo Class-AB headphone amplifier from the DirectDrive series, featuring integrated BassMax bass enhancement. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and delivers 124 mW per channel into a 16 Ohm load. The device includes I2C control for volume adjustment and system management. Key electrical specifications include a gain bandwidth product of 3 MHz and an input bias current of 1 uA. It is housed in a compact 20-TQFN package with exposed pad.
Feature Summary
- Integrates BassMax technology for enhanced low-frequency audio performance
- Supports digital volume control and system management via I2C interface
- Includes Depop circuitry to eliminate pop noise during power transitions
Applications
- Portable audio players and MP3 devices
- Mobile phones and smartphones
- Personal media players
Procurement Notes
Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS compliance and lead-free status as specified in official documentation. Ensure proper ESD handling during storage and assembly. Validate package marking against datasheet standards to prevent counterfeit substitution.
Selection Notes
Select this component for applications requiring high-fidelity stereo audio with digital control capabilities. The I2C interface allows flexible system integration without additional GPIO usage. Consider the thermal performance of the TQFN package for enclosed designs. Verify supply voltage compatibility with the target system's power rails.
Part Context
This part belongs to Maxim Integrated's DirectDrive family of audio amplifiers designed for portable electronics. It replaces older discrete solutions by integrating protection features and digital controls. The MAX9726 series offers a balance of audio quality and power efficiency for battery-operated devices.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult manufacturer obsolescence notices for potential alternative recommendations.
