The LM4864MX from Texas Instruments is a highly efficient audio amplifier designed to deliver superior audio performance for a wide range of applications. This integrated circuit is part of the Boomer® series of Texas Instruments, which is known for its high-quality audio amplifiers with low voltage operation and power-saving features.
Key Features:
- Output Power: The LM4864MX can deliver 675 mW of continuous average power to an 8Ω load with 0.1% THD+N using a 5V power supply, making it suitable for portable devices where high-quality sound is essential.
- Bridge-Tied Load (BTL) Configuration: It operates in BTL configuration that allows for higher power output while eliminating the need for external coupling capacitors, thus reducing the overall component count and system cost.
- Efficiency: The device offers superb power efficiency compared to conventional class AB amplifiers, which is crucial for battery-operated devices as it extends battery life.
- No "Pop & Click" Noise: The LM4864MX features a smooth turn-on and turn-off transition, minimizing the "pop and click" noise that can occur with other amplifiers when power is applied or removed.
- Shutdown Mode: An external shutdown function is provided, which can reduce the quiescent current to less than 0.7µA, further conserving power for battery-operated devices.
Applications:
The LM4864MX is ideal for a variety of audio applications, including:
- Portable electronic devices such as smartphones, tablets, and laptops
- Portable speakers and docking stations
- Personal digital assistants (PDAs)
- Portable media players
Package and Availability:
The LM4864MX is available in an 8-pin SOIC package, which is both compact and easy to integrate into various electronic designs. Its surface-mount package allows for efficient assembly in mass production, catering to the needs of commercial and industrial scale applications.
For detailed specifications, application notes, and additional resources, visit the Texas Instruments official website or contact their customer support for assistance with integration and selection for your specific needs.
