The main difference between VGA connector and HDMI connector

 As a purchaser, have you ever heard of VGA connector and HDMI connector? Maybe they are not popular, but they are by no means unpopular products. Therefore, it is very necessary as a buyer to know about these two products. The Konnra connector engineer will give you a detailed introduction to the main difference between the VGA connector and the HDMI connector.

VGA cable
Talking about the difference between VGA connector and HDMI connector, to sum up, there are probably several aspects, as follows:
1. The VGA connector was designed decades ago in 1987, and the HDMI connector was designed in 2002.
2. The VGA connector sends and receives data in analog mode, while the HDMI connector uses digital data.
3. The VGA connector only supports video, while the HDMI connector supports video and audio.
VGA connector
4. The VGA connector is a DE-15 connector and consists of 15 pins, while the HDMI connector has several sockets of type A, C and D, which have 19 pins. But there is also type B in the HDMI connector,
There are 29 pins.
5. Compared with Type A, C and D HDMI connectors, the height and width of the VGA connector are much larger, even though the length of Type B HDMI is very thin compared to the VGA interface.
6. The VGA connector cannot be hot-plugged, while the HDMI connector can be hot-plugged. According to the standard, even if the VGA cannot be hot-plugged, it can be connected or disconnected during normal operation of the host without any damage.

7. VGA connector cannot provide the best quality for high-definition video, but HDMI connector is an ideal choice for high-quality high-definition video.

HDMI connector

8. Modern high-end graphics cards do not have a VGA connector slot, but have an HDMI connector slot.
9. Due to space issues, small devices such as mobile phones, ultrabooks, and tablets do not have VGA connector slots, but usually have HDMI connector slots.
10. The current market price of HDMI cable connectors is usually higher than that of VGA cable connectors.

11. Since both computers and modern LCD monitors process digital data when using a VGA connector, the signal must be converted from digital to analog and then from analog to digital, which will reduce quality and increase overhead, but HDMI connectors do not This type of conversion is required.




评论

发表评论

此博客中的热门博文

What is the coaxial connector?

图片
Coaxial connectors are used to transmit RF signals. They have a wide transmission frequency of up to 18 GHz or higher and are mainly used for radar, communication, data transmission and aerospace equipment. The basic structure of the coaxial connector includes: a center conductor (a positive or negative center contact); a dielectric material outside the inner conductor, or an insulator, and the outermost is an outer contact, which serves as a shield outside the coaxial cable. The same function of the layer, that is, the signal transmission, the grounding element as a shield or circuit. The coaxial connectors are mainly divided into: SMA, SMB, BNC, TNC, SMC, N-type, BMA, and the like. Male: Male (plug), thread inside, inside is the needle. Such as TNC (M). Female: Female (socket), threaded outside, inside is a hole. Such as SMA (F). RP: Reverse Polarity means that the head and the inside of the needle are opposite. Bulkhead: It is the joint of the lockable screw on the board and
阅读全文

Talking about the function, classification and working principle of OTG data line

图片
  What is the OTG line? OTG is mainly applied to the connection between various devices or mobile devices for data exchange. The development of USB technology enables computers and peripheral mobile devices to transmit various data through simple USB connections. This will lead to a situation, once the mobile phone or tablet does not have a computer, we cannot manage the data of mobile devices such as mobile phones, which brings inconvenience to users. As mobile devices such as mobile phones become more and more like computers, can we imagine that we can use mobile phones as computers? Can a U disk, USB network card, etc. be connected to the phone? The answer is yes, the OTG function is to realize that the mobile phone can be connected with USB devices such as U disk, but the mobile phone has a tiny   USB   interface, which cannot meet the needs of USB ports such as U disk. So far, the OTG data cable came into being. The role of OTG is to realize data transfer between mobile devices wi
阅读全文

The optical fiber connector

图片
A fiber optic connector is a detachable (active) connection between an optical fiber and an optical fiber. The two end faces of the optical fiber are precisely butted together so that the optical energy output from the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent. It also minimizes the impact on the system due to its involvement in the optical link, which is a basic requirement for fiber optic connectors. To some extent, fiber optic connectors affect the reliability and performance of optical transmission systems. Basic introduction A connecting device for re-plugging between optical fibers, also called a fiber optic movable joint. The main performance parameters (and typical values) are: insertion loss (<0.5dB), plug-and-repeat repeatability and interchangeability between connectors (500 changes). When used in a large-capacity high-speed transmission system, reflection is also required to be small. Introduction Optical fiber con
阅读全文