LM49370RL/NOPB

Audio Amplifiers Overview

The LM49370RL/NOPB is a Boomer Audio Power Amplifier and Sub-System featuring an ultra-low EMI spread spectrum Class D loudspeaker amplifier. It integrates a stereo headphone amplifier within a single package, designed for portable audio applications. The device operates within a supply voltage range of 2.7V to 5.5V and supports digital audio interfaces including I2S, PCM, and TDM. It utilizes a 49-DSBGA package with an operating temperature range from -40°C to 85°C.

Audio Amplifiers Feature Summary

• Integrates a Class D mono speaker amplifier with a stereo headphone amplifier in a single solution
• Features ultra-low electromagnetic interference through spread spectrum modulation technology
• Supports multiple digital audio input formats including I2S, PCM, and TDM
• Includes integrated volume control and mute functions for system management

Audio Amplifiers Applications

• Portable media players and smartphones
• Tablets and handheld gaming devices
• Digital voice recorders
• MP3/MP4 players

Audio Amplifiers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required packaging options. Confirm that the component status remains active as product lifecycles may change. Cross-reference the pinout diagram with the target PCB layout to prevent assembly errors due to package variations.

Audio Amplifiers Selection Notes

Select this component when a combined speaker and headphone output is required to minimize board space. Ensure the design accommodates the thermal requirements of the Class D amplifier section. Verify that the host processor provides compatible digital audio interface signals such as I2S or PCM. Consider the power supply constraints relative to the 2.7V to 5.5V operating range.

Audio Amplifiers Part Context

This part belongs to Texas Instruments' Boomer series of audio amplifiers. It is distinct from other variants by its specific integration of both speaker and headphone drivers. The NOPB suffix indicates compliance with RoHS standards and absence of lead-based materials. It serves as a compact solution for multi-channel audio systems in consumer electronics.

Audio Amplifiers Replacement Considerations

LM49370RLX/NOPB: Pin-compatible alternative with tape and reel packaging.