VGA signal and RGB signal

Release date: 2021/6/1 16:34:01 | Publisher: Shenzhen Cptele Electronics Co., Ltd

 

VGA Signal (DB15)

VGA (Video Graphics Array) is a video transmission standard launched by IBM in 1987 with PS/2 machine, which has the advantages of high resolution, fast display rate and rich color, and has been widely used in the field of color display, but it is easy to attenuate, short transmission distance and easy to interfere. Its 3 4/6VGA transmission distance is 15-30M.

Extension: The common serial port and VGA shape in the industry belong to the DB series, and the serial port line interface has 9PIN, 9 1PIN, 3PIN, and 4PIN respectively.

Component Video (RGBHV Signal)

The chromatic aberration interface is based on the S interface, and the blue difference (b) and red difference (r) in the chromaticity (C) signal are sent separately, and its resolution can reach more than 600 lines. It is usually identified with YPbPr and YCbCr, the former representing progressive chromatic aberration output and the latter representing interlaced chromatic aberration output. Now many TV products rely on chromatic aberration input to improve the quality of the input signal,And through the chromatic aberration interface,You can input a variety of levels of signal,From the most basic480i to the frequency doubling scanning480p,Even720p、1080i, etc.,It is necessary to pass the chromatic aberration input to transmit the signal to the TV。 The transmission distance of 75-2RGB is 30-50M, and the transmission distance of 75-3RGB is 50-70M.

 

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