
Currently, composite video AV cables are the most common interface in audio-visual devices. These are analog interfaces consisting of three RCA connectors: yellow, white and red. The yellow connector transmits video signals, the white connector transmits left channel audio signals, ...
Currently, composite video AV cables are the most common interface in audio-visual devices. These are analog interfaces consisting of three RCA connectors: yellow, white and red. The yellow jack carries video signals, the white jack carries left channel audio, and the red jack carries right channel audio. Composite AV cable provides separate transmission of audio and video signals, avoiding picture quality degradation caused by interference when mixing audio and video. However, since the AV interface still transmits a mixed luma/chroma (Y/C) video signal, the display device still needs to perform luma/chromina separation and chroma decoding to form an image. This process of mixing and subsequent separation inevitably results in the loss of the color signal, and the chrominance and luma signals also have a high probability of interfering with each other, thus affecting the quality of the final output image. 75-3 (approximately 100 meters); 75-5 (approximately 300 meters)