PCM4222EVM

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The PCM422EVM evaluation module is a SOC (Switch-on-chip) device developed specifically for applications that require high speed analog to digital converters for video and audio signal processing. This module provides a valuable evaluation platform that can be used by professionals who are looking to verify the performance of their designs. It can also be used by educators for classroom teaching and demonstration purposes.

The PCM42EEV module offers a wide range of features such as high-performance quantization for video and audio signals, video scaler with video mixer for composite and component video applications, digital display interface for video stream applications, and a 16-bit A/D converter for audio/video sampling. The board is designed for industrial, commercial and consumer use. It is also compliant with the CE/FCC/VDE and UL standards and is safe for use in ruggedized and high-density applications.

The PCM42EEV module\'s working principle relies on the fact that, as noise levels increase, the signal-to-noise ratio decreases. This leads to accurate digital signal representation but can also lead to artifacts such as noise and distortion when signals are converted from analog to digital. To combat this issue, the PCM4222EVM module employs differential signals to assess each signal and reduce noise and distortion. In addition, delta-sigma conversion is used to reduce quantization distortion, while a dual-bit-sequence converter and a temporal filter are used for noise eliminating. The PCM4222EVM board also incorporates a high-powered efficiency management system and power-saving feature that allow for optimized performance and a longer operating life.

The applications of the PCM4222EVM board are numerous. These boards can be used to evaluate video and audio systems, including video surveillance systems, digital signage, streaming services, broadcast systems, televisions, and audio/video transmission systems. They can also be used to evaluate audio compression and decompression algorithms such as G.722 and G.726.

In conclusion, the PCM4222EVM evaluation board provides a great value for professionals looking to test their designs. The board is also compliant with CE/FCC/VDE and UL standards and offers a wide range of features that make it a desirable choice for numerous high-speed audio/video signal processing applications.

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