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How Do HDMI Cables Work – Connector And Version Details

How Do HDMI Cables Work – Connector And Version Details

There’s no end to the production of electronic items and with each new iteration and technological advancement comes a slew of new connections and adapters to provide power and improved performance. From SCART cables to VGA connections, each one serves different purposes and are often only compatible with relevant items. One such connection that is growing to include many visual and audio electronics is the HDMI connection. Let’s see how do HDMI cables work.

The HDMI Innards

Most connectors are formed up of pins that serve different purposes. The High-Definition Multimedia Interface has 19-pins. The first nine convert analog to digital conversion, allowing for a much improved quality. These nine pins are fed through three channels, which are controlled by three pins. A further seven pins focus on compatibility between its primary electronic item and the other connected product. The final pins control the data flow through the first nine pins.

HDMI Versions

HDMI has been updated several times through its nine-year long existence. Originally, the basics were supported, such as standard RGB and YCbCr, 8 channel LPCM, 192 kHz, 24 bit audio capabilities, blu-ray and HD DVD at full resolution and Consumer Electronic Control. There are four main version upgrades with minor fixes inserted in. Version 1.1 provided DVD-Audio support. This form of audio is similar to the Super Audio CD, a method of delivering audio content at much higher qualities than traditional CDs. Version 1.2 and 1.2a added in Super Audio CD support.

With version 1.3 (the biggest update), Deep Color with its more than 16.7 million colors, xvYCC with its extended color gamut, auto lip-sync, Dolby TrueHD and DTS-HD Master Audio were all added, making it the largest update so far. A small update to the CEC command list was released as well. 1.4 brought in several more hardware capabilities, such as compatibility with ethernet, audio return, 4k x 2k resolutions and 3D video, with 3D video’s higher resolution available with a later update.

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