SI2138-A20-GMR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Tuner
Applications:	TV
Mounting Type:	Surface Mount
Package / Case:	28-VFQFN Exposed Pad
Supplier Device Package:	28-QFN (4x4)

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SI2138-A20-GMR and Video Processing

Video processing is an important part of modern media production, and the SI2138-A20-GMR chip is a powerful tool for the process. The chip is a wide-band switching system that responds to user hardware instruction set to adjust the parameters of video installation, such as color balance and dynamic range. As this device contains multiple stages of integrated circuitry, it is used in numerous applications ranging from broadcast systems and display systems to shopping malls and home theaters.

What is SI2138-A20-GMR?

The SI2138-A20-GMR chip is a silicon integrated single-chip video processor designed for video processing applications such as displays and broadcast systems. It features integrated memory, an advanced media scaler, and an on-chip composite or Y/C or RGB color space conversion block. The device is available in a 64-pin LQFP package, with an operating voltage range of 3V to 5V and a power dissipation of 0.8 watts.The device offers a wideband cross-conversion from RGB or Y/C to composite, as well as automatic video level adaption, up to 2GHz of media input bandwidth, and up to 8 channels of audio data. It also offers encoding, multiple external programmable reference clocks, and a color decoder.

Applications and Advantages

The SI2138-A20-GMR chip is used in a variety of video processing applications where precise realtime control is needed. It is employed in two-tuner and multi-tuner component systems, HDTV broadcasting, terrestrial and cable broadcast systems, and fully interactive display systems.The device offers several advantages. It is cost-effective, and easy to integrate into existing systems. It also offers precise video level adjustment and color space adjustment, as well as precise video level control. The device is also optimized for low power consumption, and is extremely efficient in terms of size and performance.

Working Principle

The SI2138-A20-GMR chip works on the principle of storing video data in its internal memory. This allows it to be used for video level adaption, media scalers, and color space conversion. The chip also contains several blocks for video processing that are user programmable.The device begins its operation by receiving user input from an external device, such as a camera or a graphic card. This data is then converted by the internal memory into the necessary format for further processing. The data is then sent to the media scaler, color converter, and level adjuster blocks. The scaler performs the necessary horizontal and vertical scaling of the image, while the converter handles the task of color space conversion. The level adjustment ensures the final product is at the desired level of brightness, contrast, and saturation.

Conclusion

The SI2138-A20-GMR chip is a powerful device for video processing applications, ranging from broadcast systems to home theaters. It is cost-effective and energy efficient, and is able to store video data in its internal memory for precise realtime control. By employing the device’s numerous blocks for video processing and offering an advanced media scaler, level adjuster, and color converter, it is a powerful tool for modern media production.

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