LM48822TL/NOPB

Audio Amplifiers Overview

The LM48822TL/NOPB is a stereo headphone amplifier from Texas Instruments, featuring a ground-referenced architecture with ultra-high power supply rejection ratio (PSRR) and ultra-low noise characteristics. It delivers 35mW per channel into a 32-ohm load. The device integrates common-mode sense and I2C volume control capabilities. It operates within a voltage range of 2.4V to 5.5V and supports Class-G topology for efficiency. The component is housed in a USMD package and functions as a single-output audio amplifier suitable for portable applications.

Audio Amplifiers Feature Summary

• Ground-referenced output architecture providing high PSRR and low noise performance
• Integrated I2C interface for digital volume control and configuration
• Common-mode sense capability for improved audio quality
• Class-G operation for enhanced power efficiency

Audio Amplifiers Applications

• Portable media players
• Mobile phones
• MP3 players

Audio Amplifiers Procurement Notes

Verify the specific suffix TL/NOPB against the manufacturer's current datasheet to confirm package type and RoHS compliance status. Ensure the design supports the required I2C bus connections for volume control functionality. Confirm that the operating voltage range aligns with the system's power supply rails before finalizing procurement.

Audio Amplifiers Selection Notes

Select this component when ground-referenced output is required to simplify coupling capacitor usage. The integrated I2C control is advantageous for systems needing digital volume adjustment without external components. Consider the USMD package size constraints and the need for I2C bus lines during PCB layout planning.

Audio Amplifiers Part Context

This part belongs to the LM48822 series of Boomer headphone amplifiers. It is designed for high-fidelity audio reproduction in battery-powered devices. The series emphasizes low distortion and high power efficiency through its Class-G architecture and advanced noise reduction techniques.

Audio Amplifiers Replacement Considerations

Check for LM48822 variants with different suffixes or packages if availability is an issue. Verify pin compatibility and electrical specifications against the original design requirements before substitution.