视听接口和协议转换
Semtech 的 UHD-SDI/HDMI 转换器件可提供强大的速率转换、接口标准转换和协议转换，且操作功耗低、占用空间小，具有得天独厚的优势。这些器件非常适合集成到 4K 监视器、摄像机、扩展器、格式转换器、生产切换器和其他视听设备中。
GS12070 UHD-SDI Gearbox 支持多链路、双链路和单链路 UHD-SDI 接口之间的 SDI 速率转换。我们的器件在转换模式下支持 12Gbps、6Gbps、3Gbps 和 1.5Gbps 数据速率，在旁路模式下支持 270Mbps。通过自动补偿输入通道偏移，它减轻了接收多链路 SDI 信号时的系统挑战。
The GS12170 SDI/HDMI Bridge includes all the features of the GS12070, and adds conversion of HDMI signals to SDI, or vice versa. It enables low-power, seamlessly connected, uncompressed 4K video, multi-channel audio, and large amounts of metadata to cross the barrier between HDMI and SDI without requiring an expensive FPGA.
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资源
本视频介绍 GS12170 SDI/HDMI…
Semtech 信号完整性产品事业部…
In this fifth and final installment of the BlueRiver applications blog series, we’ll look at how two Semtech products lines – Semtech’s BlueRiver® ASIC platform for Pro AV and SDVoE™, and broadcast Serial Digital Interface (SDI) – can enable a unique set of “SDI-over-IP” products and applications.
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Whether you are watching an action replay of a baseball game on a giant screen at a stadium, a movie on your large-screen TV or streaming a video on your laptop computer, a high-quality audiovisual (AV) experience is always expected. Ultra-High-Definition Serial Digital Interface (UHD-SDI) and High-Definition Multimedia Interface (HDMI) are two standards for digital AV transmission. UHD-SDI standardizes the transmission of uncompressed and unencrypted digital AV signals over coaxial or fiber optic cables. HDMI is a digital interface for transmitting high-definition, high-speed digital multi-track audio and uncompressed video signals from HDMI-compliant sources to AV displays. 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 preferred for high-end applications such as professional indoor/outdoor video production and television broadcasts because it supports long-range transmission and a rugged connection with the help of a physical lock mechanism at each end of the cable. UHD-SDI coaxial cable can transfer signals up to 300 feet, whereas HDMI cables struggle with excessive signal degradation even within 50 feet. These two interfaces can be used together via an HDMI-SDI or SDI-HDMI converter. For example, as shown in figure 1, an HDMI display would be used for confidence monitoring of an SDI stream to avoid the need to use specially calibrated SDI-specific displays.
Circuit Protection for HDMI-SDI/SDI-HDMI…
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