Texas Instruments

LM4921ITL/NOPB  

Audio Amplifiers

LM4921ITL/NOPB Description

The LM4921ITL/NOPB is a high-performance, dual-channel Class AB audio amplifier from Texas Instruments, designed to deliver exceptional audio quality in compact and power-efficient systems. This amplifier is part of the renowned Boomer® series, known for its reliability and advanced features. The LM4921ITL/NOPB supports a maximum output power of 50mW per channel into a 32-ohm load, making it suitable for applications requiring low power consumption and high audio fidelity.

LM4921ITL/NOPB Features

The LM4921ITL/NOPB offers a comprehensive set of features that enhance its functionality and flexibility in various applications. Key features include:

• Class AB Amplifier Type: Ensures high efficiency and low distortion, providing clear and dynamic audio output.
• Wide Supply Voltage Range: Operates from 2.6V to 5.5V, allowing compatibility with a variety of power supplies and system designs.
• Integrated DAC and I2S Interface: Facilitates direct connection to digital audio sources, simplifying system integration and reducing component count.
• Control Features: Includes mute, shutdown, standby, and volume control functionalities, enabling precise control over audio output and power management.
• Thermal Protection: Ensures reliable operation by preventing overheating, extending the life of the amplifier and maintaining performance under varying conditions.
• Surface Mount Packaging: The 20USMD package is ideal for surface mount applications, offering a compact footprint and ease of integration into modern PCB designs.
• Compliance and Standards: The LM4921ITL/NOPB is REACH unaffected and RoHS3 compliant, meeting stringent environmental and safety regulations.
• Moisture Sensitivity Level (MSL): Rated at MSL 1 (Unlimited), ensuring robustness and reliability in manufacturing processes.

LM4921ITL/NOPB Applications

The LM4921ITL/NOPB is well-suited for a variety of applications where high-quality audio output and low power consumption are critical. Ideal use cases include:

• Portable Audio Devices: Such as smartphones, tablets, and portable media players, where the amplifier's low power consumption and high audio quality are essential.
• Wearable Devices: Smartwatches and fitness trackers benefit from the compact size and efficient power management of the LM4921ITL/NOPB.
• Home Audio Systems: Ideal for compact speaker systems and soundbars, providing clear and dynamic audio output without compromising on power efficiency.
• Automotive Infotainment Systems: Enhances the audio experience in vehicles, offering reliable performance and compatibility with automotive power supplies.

Conclusion of LM4921ITL/NOPB

The LM4921ITL/NOPB from Texas Instruments stands out as a versatile and high-performance Class AB audio amplifier, offering a blend of advanced features and robust performance. Its wide supply voltage range, integrated digital interfaces, and comprehensive control features make it a valuable component for a wide range of audio applications. The compact surface mount package and compliance with industry standards ensure ease of integration and reliability in modern electronic designs. Whether for portable devices, home audio systems, or automotive applications, the LM4921ITL/NOPB delivers exceptional audio quality and efficiency, making it a preferred choice for engineers and designers in the electronics industry.

LM4921ITL/NOPB Documents

Download datasheets and manufacturer documentation for LM4921ITL/NOPB

PCN Assembly/Origin :

Wafer Process BCB Elimnation 12/Feb/2014      

Datasheets :

LM4921      

HTML Datasheet :

LM4921