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LM4546AVH

LM4546AVH Description

The LM4546AVH is a high-performance stereo audio codec designed for consumer electronics applications. Manufactured by National Semiconductor, this device is part of the LM4546 series and is specifically tailored to deliver exceptional audio quality and robust performance. The LM4546AVH features a dynamic range of 90 dB for ADCs and 89 dB for DACs, ensuring high-fidelity audio processing. It operates with a digital supply voltage ranging from 3V to 5.5V and an analog supply voltage from 4.2V to 5.5V, making it versatile for various power configurations.

The LM4546AVH supports both AC'97 and serial data interfaces, providing flexibility in system integration. It includes two ADCs and two DACs, each with a resolution of 18 bits, enabling precise audio signal conversion. The device employs Sigma Delta modulation, which enhances the audio quality by reducing quantization noise. The LM4546AVH is available in a surface-mount package, specifically a PQFP48, and is classified under HTSUS code 8542.39.0001. It is REACH affected and has a moisture sensitivity level (MSL) of 2A (4 weeks), making it suitable for environments with moderate humidity.

LM4546AVH Features

The LM4546AVH offers several unique features that set it apart from similar audio codecs:

• High Dynamic Range: With a dynamic range of 90 dB for ADCs and 89 dB for DACs, the LM4546AVH ensures high-fidelity audio processing, making it ideal for applications requiring superior sound quality.
• Flexible Power Supply: The device operates with a digital supply voltage of 3V to 5.5V and an analog supply voltage of 4.2V to 5.5V, providing flexibility in power configurations and ensuring compatibility with a wide range of systems.
• Advanced Data Interfaces: The LM4546AVH supports both AC'97 and serial data interfaces, offering versatility in system integration and compatibility with different communication protocols.
• High-Resolution Conversion: Equipped with two 18-bit ADCs and two 18-bit DACs, the codec delivers precise audio signal conversion, enhancing the overall audio experience.
• Sigma Delta Modulation: This technology reduces quantization noise, resulting in cleaner and more accurate audio output.
• Surface-Mount Packaging: The PQFP48 package ensures easy integration into compact and space-constrained designs, making it suitable for modern consumer electronics.

LM4546AVH Applications

The LM4546AVH is well-suited for a variety of consumer electronics applications where high-quality audio processing is essential. Some specific use cases include:

• Home Theater Systems: The high dynamic range and precise audio conversion capabilities make the LM4546AVH ideal for home theater systems, delivering an immersive audio experience.
• High-Fidelity Audio Equipment: The device's superior audio performance ensures it is well-suited for high-fidelity audio equipment, such as premium soundbars and audio amplifiers.
• Smartphones and Tablets: The flexible power supply and compact packaging make the LM4546AVH suitable for integration into smartphones and tablets, enhancing the audio quality of these devices.
• Gaming Consoles: The LM4546AVH can be used in gaming consoles to provide high-quality audio output, enhancing the overall gaming experience.

Conclusion of LM4546AVH

The LM4546AVH is a high-performance stereo audio codec that offers exceptional audio quality and robust performance. Its high dynamic range, flexible power supply, and advanced data interfaces make it a versatile solution for a wide range of consumer electronics applications. The device's Sigma Delta modulation technology and high-resolution ADCs and DACs ensure precise audio signal conversion, delivering superior sound quality. With its surface-mount packaging and compatibility with modern power configurations, the LM4546AVH is an ideal choice for designers looking to integrate high-fidelity audio processing into their products.