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探究HDMI接口的设计原理

date:On July 04, 2017 Source:  

   HDMI的出现,随着科技时代的变化,造就了许多HDMI的产品系列,HDMI线,HDMI放大器,HDMI接口等。最为出名的就是HDMI线与接口了,它们的互相搭配完美极致,尤其是HDMI 2.0的版本,超高清的视频输出,极致的音频体现,做到天衣无缝,HDMI为何这么耀眼,即在于它的定义上,怎么说呢!今天就来看看。

The emergence of HDMI, with the technological era of change, creating a number of HDMI product line, HDMI cable, HDMI amplifier, HDMI interface. Recently known is the HDMI cable and interface, and their perfect match with each other, especially the HDMI 2.0 version, ultra-high-definition video output, the ultimate audio expression, so seamless, why HDMI so bright, that is, it is defined How do you say! Today to see.


   HDMI接口的定义。HDMI的全称就是(HighDefinitionMultimediaInterface)是数字高清多媒体接口,HDMI在引脚上和DVI兼容,只是采用了不同的封装。与DVI相比。HDMI可以传输数字音频信号,并怎家了对HDCP的支持,同时提供了更好的DDC可选功能,这是PCB上的设计原理。

Definition of HDMI interface. HDMI full name is (HighDefinitionMultimediaInterface) is a digital high-definition multimedia interface, HDMI pin and DVI compatible, but using a different package. Compared with DVI. HDMI can transmit digital audio signals, and how to support HDCP, while providing a better DDC optional features, which is PCB design principles.


   现在我们来看看在PCB上的走线设计的要求是如何的,尽可能使HDMI连接器和器件之间的电器长度保持最短,从而使衰减最小化。这是为了使差分信号正常的传输,一个差分对的两走线间距必须在整个走线轨迹上上保持一致。否则,间距变化就会英气磁场耦合不平衡,造成从而降低磁场消除的效果,造成EMI增加。推荐线宽间距比为1:1。

Now let's take a look at the requirements for the alignment design on the PCB, keeping the length of the electrical connector between the HDMI connector and the device as short as possible, minimizing attenuation. This is in order to make the differential signal normal transmission, a differential pair of two-track spacing must be consistent on the entire trajectory. Otherwise, the pitch change will be the British magnetic field coupling imbalance, resulting in reduced magnetic field to eliminate the effect, resulting in EMI increase. Recommended line spacing ratio of 1: 1.


   简单的了解HDMI接口的定义,你就知道了HDMI的兼容性使多么的广阔,HDMI接口的出现为的只是让更多的眼睛看到,更多的高清视频。

Simple understanding of the definition of HDMI interface, you know how much HDMI compatibility so wide, HDMI interface appears to just let more eyes see, more high-definition video.


   想了解更多相关信息请登陆利诺威网站:http://www.hdmiaoc.com/

For more information, please visit the Lenewei website: http://www.hdmiaoc.com/

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Tel: + 86755-23224889

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