Texas Instruments

LM4549BVHX  

CODECS

LM4549BVHX Description

The LM4549BVHX is a high-performance audio codec designed by Texas Instruments, featuring a robust set of capabilities tailored for advanced audio processing applications. This interface IC chip is part of the Audio, AC '97 category and is housed in a 48-LQFP package, suitable for surface mount technology. The LM4549BVHX supports a wide dynamic range for both ADCs and DACs, with typical values of 90 dB and 89 dB respectively, ensuring high-quality audio signal processing. It operates within a digital supply voltage range of 3.3V to 5.5V and an analog supply voltage range of 4.2V to 5.5V. The device is equipped with two ADCs and two DACs, each offering a resolution of 18 bits, which is ideal for high-fidelity audio applications. The LM4549BVHX also incorporates sigma-delta modulation, enhancing its performance in noise reduction and precision. Despite its obsolescence, the LM4549BVHX remains a reliable choice for systems requiring robust audio processing capabilities.

LM4549BVHX Features

• Dynamic Range: The LM4549BVHX boasts a dynamic range of 90 dB for ADCs and 89 dB for DACs, providing superior audio quality and clarity.
• Supply Voltage Flexibility: It supports a digital supply voltage range of 3.3V to 5.5V and an analog supply voltage range of 4.2V to 5.5V, making it adaptable to various power supply configurations.
• High Resolution: With 18-bit resolution for both ADCs and DACs, the LM4549BVHX ensures precise audio signal conversion, minimizing distortion and noise.
• Sigma-Delta Modulation: This feature enhances the codec's performance by reducing quantization noise and improving overall audio fidelity.
• Data Interface: The LM4549BVHX utilizes a serial data interface, which simplifies system integration and reduces the number of required connections.
• Mounting Type: The surface mount technology (SMT) makes it suitable for compact and space-efficient designs, ideal for modern electronics.
• Moisture Sensitivity Level: With an MSL rating of 3 (168 hours), the LM4549BVHX is designed to withstand environmental challenges, ensuring reliability in various operating conditions.

LM4549BVHX Applications

The LM4549BVHX is ideal for a variety of applications where high-quality audio processing is essential. Its high dynamic range and resolution make it suitable for professional audio equipment, such as mixing consoles, studio monitors, and high-end sound systems. The codec's flexibility in supply voltage and its sigma-delta modulation capability also make it a strong candidate for consumer electronics like portable media players, smartphones, and tablets. Additionally, its compact surface mount package and moisture resistance level of 3 (168 hours) make it well-suited for ruggedized and space-constrained environments, such as automotive infotainment systems and industrial control panels.

Conclusion of LM4549BVHX

The LM4549BVHX, developed by Texas Instruments, is a versatile audio codec that offers a combination of high dynamic range, high resolution, and sigma-delta modulation, making it a robust solution for demanding audio applications. Despite its obsolescence, the LM4549BVHX remains a reliable choice for systems requiring high-fidelity audio processing. Its wide supply voltage range, serial data interface, and surface mount package further enhance its adaptability and ease of integration. Whether used in professional audio equipment, consumer electronics, or ruggedized environments, the LM4549BVHX delivers exceptional performance and reliability, ensuring it remains a valuable component in the electronics industry.

LM4549BVHX Documents

Download datasheets and manufacturer documentation for LM4549BVHX