LM49155TL/NOPB

Audio Amplifiers Overview

The LM49155TL/NOPB is a stereo audio subsystem integrating Class-D and Class-AB amplifiers in a 36-pin DSBGA package. It delivers 1.35 W output power with 0.1% THD+N, operating on 1.8 V to 5 V supplies. The device draws 600 uA quiescent current and functions within -40°C to +85°C.

Audio Amplifiers Feature Summary

• Provides uplink noise suppression and downlink SNR enhancement without DSP-type artifacts or delays
• Integrates adaptive automatic gain control responding to ambient noise levels

Audio Amplifiers Applications

• Mobile handset audio subsystems
• Smartphone headphone amplifier circuits
• Portable communication devices requiring low-power stereo audio

Audio Amplifiers Procurement Notes

Verify the specific suffix TL against the official Texas Instruments datasheet to confirm pinout and thermal characteristics. Ensure the DSBGA-36 footprint matches your PCB design constraints. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement orders.

Audio Amplifiers Selection Notes

Select this component for applications requiring integrated analog audio processing with minimal external components. The combination of Class-D efficiency and Class-AB linearity suits battery-powered portable electronics. Verify that the required output power aligns with the 1.35 W specification for the target load impedance.

Audio Amplifiers Part Context

This part belongs to the LM49155 family of enhancement analog audio subsystems. It is designed specifically for mobile phone applications where space and power consumption are critical constraints. The device consolidates multiple audio functions into a single compact package.

Audio Amplifiers Replacement Considerations

Consult the official TI substitution guide for verified alternatives. Do not assume functional compatibility with other Class-D amplifiers due to unique analog processing features.