National Semiconductor Tariff Inquiry

LM4549AVHX

LM4549AVHX Description

The LM4549AVHX is a high-performance AC '97 stereo audio codec designed for consumer electronics applications. Manufactured by National Semiconductor, this interface IC chip offers a comprehensive solution for high-quality audio processing. It features a dynamic range of 90 dB for ADCs and 89 dB for DACs, ensuring superior audio clarity and minimal distortion. The LM4549AVHX operates with a digital supply voltage ranging from 3V to 5.5V and an analog supply voltage from 4.2V to 5.5V, providing flexibility in power requirements.

LM4549AVHX Features

• High Dynamic Range: The LM4549AVHX boasts a dynamic range of 90 dB for ADCs and 89 dB for DACs, which is crucial for high-fidelity audio reproduction.
• Sigma Delta Modulation: This feature enhances the precision and accuracy of the audio signal, resulting in clearer and more detailed sound.
• Dual ADCs and DACs: The chip includes two ADCs and two DACs, allowing for simultaneous processing of multiple audio streams.
• AC '97 Data Interface: The LM4549AVHX supports the AC '97 interface, ensuring compatibility with a wide range of audio systems and devices.
• Surface Mount Technology: The surface mount mounting type facilitates easy integration into compact and modern electronic designs.
• Resolution: With an 18-bit resolution, the LM4549AVHX delivers high-quality audio performance, making it suitable for demanding applications.
• Moisture Sensitivity Level: The MSL rating of 2A (4 weeks) ensures the chip's reliability in various environmental conditions.

LM4549AVHX Applications

The LM4549AVHX is ideal for a variety of consumer electronics applications where high-quality audio processing is essential. Some specific use cases include:

• Home Theater Systems: Enhancing the audio experience with high-fidelity sound processing.
• Personal Computers: Providing superior audio quality for multimedia applications.
• Smartphones and Tablets: Delivering clear and detailed audio for music, video, and voice calls.
• Audio Amplifiers: Ensuring high-quality sound reproduction in compact and portable amplifiers.
• Gaming Consoles: Enhancing the immersive audio experience for gamers.

Conclusion of LM4549AVHX

The LM4549AVHX is a versatile and high-performance AC '97 stereo audio codec that stands out in its category due to its superior dynamic range, sigma delta modulation, and dual ADC/DAC capabilities. Its compatibility with the AC '97 interface and surface mount technology make it an ideal choice for modern consumer electronics. The 18-bit resolution and moisture sensitivity level ensure reliability and high-quality audio performance. Whether used in home theaters, personal computers, or portable devices, the LM4549AVHX delivers exceptional audio clarity and reliability, making it a preferred choice for designers and engineers in the electronics industry.