NewsCircuit Protection for HDMI-SDI/SDI-HDMI Converters

Circuit Protection for HDMI-SDI/SDI-HDMI Converters

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If you’re watching an action-replay of a baseball match on a huge screen in an arena, or watching a movie on your TV with a large screen and streaming video from your laptop computer, a superior audio-visual (AV) enjoyment is required. Ultra-High-Definition Serial Digital Interface (UHD-SDI) and High-Definition Multimedia Interface (HDMI) are two standards for digital AV transmission. UHD-SDI is a standard for the transmission of uncompressed , unencrypted digital audio signals using fiber optic or coaxial cables. HDMI is an interface that digitally transmits high-definition and high-speed digital multi-track audio and video signals uncompressed from HDMI-compliant sources to AV display.

Even though they both can transport ultra-high-definition AV signals from a source to a display, HDMI is preferred to connect consumer gadgets such as computers, gaming consoles, Blu-ray/DVD players, televisions, projectors, etc. UHD-SDI is a preferred choice for applications that require high-end quality, like professional indoor/outdoor television broadcasts and video production since it allows for long-range transmission as well as a robust connection thanks to the physical locking mechanism on the end of each cable. UHD-SDI cable is able to transfer signals for up 300 feet. HDMI cables are prone to excessive signal loss even at 50 feet. Both interfaces can be combined by using an HDMI-SDI or SDI-HDMI converter. As an example, as illustrated in the figure 1.1, an HDMI display could be used to monitor the confidence for an SDI stream, avoiding the requirement to use specifically calibrated SDI-specific displays.

Michal Pukala
Electronics and Telecommunications engineer with Electro-energetics Master degree graduation. Lightning designer experienced engineer. Currently working in IT industry.