Current Location:HDMI cable
Click:3580Time:2013-10-24 11:27:17
hdmi connector is an all-digital transmission of video and audio interfaces, you can send uncompressed audio signals and video signals. HDMI can be used for set-top boxes, DVD players, personal computers, video games, integrated amplifier, digital audio and TV. HDMI can transmit audio and video signals, the audio and video signals using the same cable, greatly simplifying system installation.
the functional advantages of hdmi connector
HDMI specification connectors while maintaining high-quality case can be transmitted in digital high-definition video and uncompressed multi-channel audio data. Its superior performance beyond all previous products.
HDMI specification connectors single connection, replace the cables behind the product complex.
Using the HDMI specification cable connector broadens the length limit. For example: DVI cable length can not exceed 8 meters, otherwise it will affect the picture quality, and compliance with the HDMI specification cable length of up to 15 meters.
The HDMI specification can be used with bandwidth digital content protection (HDCP), to prevent the reproduction of copyrighted audio and video content from unauthorized copying.
Classification hdmi connector
HDMI B Type
A total of 29pin, HDMI A type can be transmitted twice the TMDS data, relative mean DVI Dual-Link transmission for the transmission of high-resolution (WQXGA 2560x1600 and above). (Only because HDMI A type of Single-Link TMDS transmission, if you want to transfer the signal into the HDMI B type, it must be twice the transmission efficiency, will result in the TMDS Tx, Rx operating frequency must be increased to more than 270MHz, while the HDMI 1.3 IC before the appearance of the market most of the TMDS Tx, Rx only stable at 165MHz the following work.)
HDMI C Type
There are 19pin, can be said to reduce the version of HDMI A type, but the pin definition of change. Mainly used in portable devices, such as DV, digital cameras, portable media players. Now has SONY HDR-DR5E DV video using this specification as output interface connector. (Often referred to as the specification was for the mini-HDMI, which can be regarded as self-created random name, this name did not in fact the official HDMI.)
HDMI D Type
HDMI Type D, commonly known as Micro HDMI is defined as the HDMI 1.4 version to keep hdmi standard 19pin. But the size and mini-USB excuse about the size of 2.8 mm × 6.4 mm, than the mini hdmi (2.42 mm × 10.42 mm) is much smaller , mainly used in small mobile devices such as mobile phones, MP4 etc..
hdmi connector trends
hdmi connector development should be small, high-density, high-speed, high-frequency direction. Miniaturization is the hdmi connector center spacing smaller, high density is to achieve a large number of cores. High-density PCB (printed circuit board) hdmi connector 600 the total number of effective contacts the core, specific device up to 5000 cores. High-speed transmission is a modern computer, information technology and network technology requires time scale of signal transmission rate up to MHz frequency band, time to reach sub-millisecond pulse, thus requiring a high speed hdmi connector. To meet the high-frequency millimeter-wave technology is the development of RF coaxial connectors are hdmi into millimeter-wave frequency band.
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