The S-Video interface has been widely used in some old TVs, VCRs, game consoles and other devices to transmit ** signals. However, with the development of technology, the S-Video interface has been gradually replaced by other more advanced interfaces, such as HDMI, DVI, etc.
Now the S-Video interface is widely used in TVs, monitors, video cameras, video recorders and other equipment, providing better quality than the traditional composite interface. The S-Video interface can be used to obtain clearer and more accurate images, which is especially suitable for demanding display scenarios.
The S-Video interface is caused by various reasons, such as human touch, live plugging and unplugging, weather conditions, etc. If the interface is not protected by ESD EOS, the internal output chip will be damaged and the device will not work normally.
Lei Mao EMC is an expert in electrostatic surge protection for electronic equipment, and has ten years of practical experience in serving customers. Shanghai Leimao has launched S-Video and other ** interfaces, ESD electrostatic and surge protection.
Let's take a look at this interface first: S-Video interface is a transmission standard, also known as Y C interface. It divides the signal into two independent parts: luminance (y) and chromaticity (c), and transmits these two parts of the signal separately, which can avoid the interference of luminance and chromaticity signals with each other, improve the quality of transmission, and improve the clarity and color accuracy of the image. The S-Video connector usually includes a 4-pin, 7-pin or 9-pin connector, with the 4-pin connector being used to transmit basic luminance and chromaticity signals, and the 7-pin or 9-pin connector supporting more functions such as audio transmission. 4-needle is the most commonly used, and this article takes 4-needle as an example to make an electrostatic surge protection scheme.
Scheme.
1. Discrete components GBLC05C scheme.
Advantages of the solution: This solution uses ESD diode GBLC05C to complete the electrostatic surge protection of the interface, the discrete component SOD-323 package, convenient wiring, low capacitance, large IPP current, 18A, which can not only ensure the integrity of signal transmission, but also protect against a certain surge. And it meets IEC 61000-4-2 (electrostatic) 30kV (air) and 30kv (contact) standards, with strong antistatic ability.
Scheme.
2. Integrated component LCC05DT3 scheme.
Advantages of the solution: This solution uses ESD diode LCC05DT3 to complete the electrostatic surge protection of the interface, integrated component SOT-23 package, space saving, low capacitance, large IPP current, 12A, which can not only ensure the integrity of signal transmission, but also protect against a certain surge. And it meets IEC 61000-4-2 (electrostatic) 30kV (air) and 30kv (contact) standards, with strong antistatic ability.