Article: HDMI Extender: Solution To HDMI Transmission Over Long Cables
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HDMI Extender: Solution To HDMI Transmission Over Long Cables
Background:
The main advantages of HDMI, high definition multimedia interface, over standard analog video transmission is that it is 100 % digital from source to display. However, transmitting HDMI over long distances is not so easy. In this article we will describe some of the issues encountered during HDMI transmission and present a solution that can significantly improve HDMI transmission: the HDMI Extender.
Basic HDMI transmission characteristics:
HDMI is based on TMDS, transmission minimized differential signaling, developed by Silicon Image. In order to support non-compressed HD video quality, HDMI needs to support data rates up to ~1.65 Gbps for each of 3 transmission pairs. In addition, TMDS is based on a characteristic impedance of 50...
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