According to the spdif (Sony-Philips Digital Interface Format) standard, wires with the same appearance as RCA analog audio flexible cables can also be used to transmit digital audio signals. FPC connector type A: both ends are connected and the reinforcing plate is pasted on the insulating tape, type B: the reinforcing plate is directly pasted on the insulating tape, type C: the reinforcing plate at both ends is directly pasted on the conductor, D Type: The reinforcing plates at both ends are pasted directly on the conductor. Type E: The reinforcing plates at one end are pasted on the insulating tape, and the other end is soldered directly. FFC flexible cable can arbitrarily select the number and spacing of wires, making wiring more convenient, greatly reducing the size of electronic products, reducing production costs, and improving production efficiency. It is most suitable for between moving parts and motherboards, and between PCB boards. , used as data transmission cables in miniaturized electrical equipment. FPC flexible cables are widely used in the connection between the print heads of various printers and motherboards, signal transmission and board-to-board connections in plotters, scanners, copiers, audio, LCD appliances, fax machines, various video disc players and other products. They are almost everywhere in modern electrical equipment. Coaxial flexible cables can be used to transmit stereo (CD format) or multi-channel (Dolby Digital\u002FDTS) digital signals. The plugs are generally marked with orange and black. Although any wire with an RCA plug can be used to transmit digital audio signals, it is best to use wires specifically designed for digital audio to achieve the best possible transmission, i.e. the impedance of the plug and jack should be marked 75Ω.
Composite composite network video through soft cable
This terminal has the same profile as the RCA terminal used to transmit analog and digital coaxial signals. The name comes from the fact that composite video terminals transmit both chroma (all colors) and luma (black and white) signals over a single wire, usually with a yellow appearance. In terms of use, wires used to transmit signals coaxially can be used to transmit composite video signals as long as RCA plugs are used, but wires with a specially designed impedance of 75 Ω can restore a better image, especially over long distances in the case of. This is because specially designed wires can reduce the impact of impedance mismatch and signal reflection on the image, and reduce ghosting. Synthetic video terminal is the most commonly used video terminal, but it is also a low-fidelity video transmission method, so S video terminal and component video terminal are more suitable when image restoration quality is required.
S video soft cable
Since S video terminals use separate lines to transmit chrominance and luminance signals in color video signals, compared with composite video terminals that use a single line to transmit chrominance and luminance signals at the same time, the quality of the restored image is significantly improved. The S-terminal uses a unique four-pin plug (formally known as the mini-DIN connector). The direction and position of the pins must be clear during use. If blindly inserted with force, the pins will bend and cause damage to the plug.
Component video terminal
The English name of component video through soft cable comes from China. This kind of management soft cable separates video data signal processing into three different basic components for information transmission. Therefore, for the color difference flexible cable system, three separate signal lines are used to transmit control signals, and the signal engineering quality problems restored are better than those of composite flexible cables and S flexible cables. In terms of appearance, the color difference flexible cable is the same as the ordinary RCA flexible cable. It is just a combination of three wires for learning and use, but the signals transmitted by the three wires are completely different. These three sets of signals are: brightness (labeled Y), and the color cultural difference signals (labeled Pb and Pr) from two of the three primary color signals - blue and red - after removing the brightness change signal. The joints of the three lines are distinguished by green, blue, and red resources respectively. If we insert the wrong lines between these three lines, it may appear that students cannot see the picture, or it may show a strange color.