LM4832M/NOPB

Audio Amplifiers Overview

The LM4832M/NOPB is a monolithic integrated circuit featuring a stereo audio power amplifier, microphone preamp stage, and digitally controlled tone and volume circuits. It provides independent left and right output volume controls, bass and treble adjustments, and Texas Instruments 3D Sound enhancement via an I2C compatible interface. The device delivers 250 mW (typ) into 8Ω or 90 mW (typ) into 32Ω with less than 1.0% THD. It includes two selectable microphone inputs with gain control, software-controlled shutdown, and mute functions for power and microphone amplifiers.

Audio Amplifiers Feature Summary

• Integrates stereo audio power amplifier with independent left and right digital volume controls
• Includes programmable bass and treble tone controls alongside Texas Instruments 3D Sound enhancement
• Features a dedicated microphone preamplifier stage with selectable inputs and gain settings
• Utilizes an I2C compatible serial interface for comprehensive system configuration and control

Audio Amplifiers Applications

• Multimedia monitors
• Portable computers
• Desktop computers

Audio Amplifiers Procurement Notes

Verify the obsolete status of this component before procurement. Confirm that the specific M package variant matches your PCB footprint requirements. Ensure compatibility with existing I2C bus architectures in your design. Review the datasheet for absolute maximum ratings to prevent damage during integration.

Audio Amplifiers Selection Notes

Select this component when a single-chip solution for stereo audio processing, amplification, and microphone input is required. It is suitable for designs needing digital control over audio parameters without external microcontrollers for basic tone adjustment. Consider thermal dissipation capabilities if driving low-impedance loads at high power levels.

Audio Amplifiers Part Context

This part belongs to the LM4832 series from Texas Instruments, designed as a Boomer audio integrated circuit. It combines analog audio processing with digital control interfaces to simplify system architecture. The M package indicates a specific surface-mount form factor suitable for compact electronic assemblies.

Audio Amplifiers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.