SDI发射机(串行器):3G, HD, SD和DVB-ASI
Semtech的发射机(SerDes)产品集成了所有高速, 混合信号组件(序列化器), VCO, Cable Driver, Reclocker)和SMPTE数字视频和音频处理需要传输SDI视频. Grouping all of these components into one package reduces the PCB footprint required to implement SDI transmit/receive and the solution benefits from our superior jitter performance. 这个优化, cost-effective and power efficient ASIC implementation lets you focus on your value-added processing for quicker time-to-market.
我们的SDI发射机具有最完整的视频处理功能. 其中包括集成的SMPTE视频处理，包括加扰, TRS detection, insertion, 辅助数据插入. Semtech SDI发射机可以抑制并行时钟上高达300ps的抖动, 输出非常低的抖动, 符合smpte标准的SDI信号. 所有SDI发射机都具有DVB-ASI能力.
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| Total parts: | 嵌入式音频处理 | Package Size | Package Type | 最大数据速率(Mb/s) | Power (mW) | Video Inputs | Video Outputs | 视频温度范围(最大)(°C) |
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Resources
Semtech信号完整性产品集团…
在bluerriver应用程序博客系列的第五篇也是最后一篇文章中, 我们将看看Semtech的两条产品线- Semtech的 bluerriver®ASIC平台 下载Pro AV及 SDVoE™，以及广播 串行数字接口(SDI) -可以启用一套独特的“SDI-over-IP”产品和应用.
bluerriver®应用程序第5部分:bluerriver &…
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无论你是在体育场的大屏幕上观看棒球比赛的实况回放, 在大屏幕电视上看电影或在笔记本电脑上播放视频, 高质量的视听(AV)体验总是值得期待的. 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是一种用于传输高清数据的数字接口, high-speed digital multi-track audio and uncompressed video signals from HDMI-compliant sources to AV displays. 尽管它们都可以将超高清AV信号从信号源传输到显示器, HDMI更倾向于连接电脑等消费电子产品, 游戏控制台, 蓝光/ DVD播放器, 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同轴电缆可以传输信号高达300英尺, 而HDMI电缆即使在50英尺内也会受到过度信号衰减的困扰. 这两个接口可以通过HDMI-SDI或SDI-HDMI转换器一起使用. For example, 如图1所示, an HDMI display would be used for confidence monitoring of an SDI stream to avoid the need to use specially calibrated SDI-specific displays.
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早在1996年，我就使用串行数字接口(SDI)设计了我的第一个产品, and little did I know that this fledgling coax-based video interface standard would dominate my career for the next 20+ years. Back then, SDI was limited to carrying Standard Definition (SD) digital video at 270 Megabits per second (Mbps), 但会发展到越来越高的数据速率，以承载高清720p, 1080i和1080p, 以及最近的4K超高清视频, 电缆的长度被认为是不可能的. 低成本的单芯同轴铜电缆的便利性, capable of carrying 4K video up to 100m has meant that SDI has become the de facto AV connectivity of choice in markets such as broadcast, Pro AV, 医疗和监测.
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