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[电脑] 到底这HDMI线材,便宜的和贵的有区别么?

还是科普一下吧,
虽然HDMI版本有1.0,1.1,1.2,1.2a,1.3等等版本之分,很多人都按照HDMI版本的标准来表示各种档次的线材,其实这是一个不正确的表示方法
HDMI标准组织为HDMI线材制定的规格只有两种:标准型和高速型
标准型:带宽75M,最大数据量2.6Gbps,最高支持1080i信号
高速型:带宽340M,最大数据量10.2Gbps,完美支持1080P

而在物理规格又有如下区分,物理规格有点类似上面某些朋友说的线径相关的方面
AWG22/AWG24/AWG26,分别支持最远15m,12m,10m的传输距离,不过这个规格与速度无关,主要是跟距离有关

To reduce the confusion about which cables support which video formats, HDMI defines two categories of cables: Category 1 certified cables, which have been tested at 74.5 MHz (1080i/720p), and Category 2 certified cables, which have been tested at 340 MHz (1600p). Category 1 HDMI cables are to be marketed as "Standard" HDMI cables, and Category 2 HDMI cables are to be marketed as "High-Speed" HDMI cables. This labeling guideline for HDMI cables went into effect on October 17, 2008. Category 1 and 2 cables can either meet the required parameter specifications for inter-pair skew, far-end crosstalk, attenuation, and differential impedance or they can meet the required non-equalized/equalized eye diagram requirements.A cable of about 5 meters (16 ft) can be manufactured to Category 1 specifications easily and inexpensively by using 28 AWG (0.081 mm² conductors. With better quality construction and materials, including 24 AWG (0.205 mm² conductors, an HDMI cable can reach lengths of up to 15 meters (49 ft).

[ 本帖最后由 xfiori 于 2009-5-7 11:58 编辑 ]


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引用:
原帖由 mingge_xu 于 2009-5-7 11:05 发表

然后呢?
Enter按成Ctrl+Enter了,没写完就发出了
已经重新编辑



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