GS12170
The GS12170 is a fully featured SDI/HDMI bridge chip (including backwards compatibility with the GS12070 UHD-SDI Gearbox) for SDI link conversion applications. The GS12170 can be configured to operate in one of three modes: SDI to HDMI bridge mode, HDMI to SDI bridge mode or SDI gearbox mode.
该器件完全支持 12Gbps 下从 HD-SDI (ST 292) 到 UHD-SDI (ST 2082-1) 的 SDI 接口标准,包括这些速率下的所有 Multi-Link SDI 标准。当配置用于 HDMI 桥接时,GS12170 完全支持 HDMI 2.0 标准,最高支持 4Kp60 4:2:2 格式。
The GS12170 is the ideal solution for chip-to-chip connectivity using TMDS signaling for UHDTV products requiring a 12Gbps UHD-SDI interface. For example, add a 12Gbps UHD-SDI input interface to a UHDTV monitor simply by adding the GS12170 in SDI to HDMI Mode, with TMDS connection directly into off-the-shelf image processing ASICs.
For applications requiring multi-channel audio, the GS12170 includes a full 16-channel audio de-embedding and embedding feature. Up to 16 channels of digital audio at 48kHz sampling, or up to eight channels at 96kHz sampling, can be extracted from the input video, and output on dedicated balls in AES/EBU or I2S serial digital formats. Existing audio is also simultaneously re-embedded in the selected output interface format. Users may also choose to insert up to eight channels of new audio using dedicated audio input balls.
In HDMI to SDI Mode, the GS12170 can extract all HDMI InfoFrames, including HDR meta data. Video payload information is automatically converted to SMPTE ST 352 packets. Similarly, in SDI to HDMI Mode, SDI SMPTE ST 352 packets are extracted and converted to equivalent InfoFrames. All InfoFrame and ancillary data packets can be read via the GSPI host interface. Users can also choose to insert new SDI ancillary data packets via the GSPI.
In SDI gearbox mode, the device will automatically reorder the output serial stream according to the received ST 352 packets, and may also duplicate outputs to unused serial output ports, or route any input channel to an unused output.
The device will also automatically compensate for up to 400ns of skew between Multi-Link SDI inputs. This aids in any lane-to-lane variance introduced by cable mismatch or upstream routing and distribution equipment.
For optimal SDI performance, the GS12170 is designed to interface directly with Semtech’s UHD-SDI equalizers and cable drivers. For HDMI connectivity, the TMDS inputs and outputs are designed for direct chip-to-chip connectivity. The device can be connected to physical HDMI connectors using an HDMI re-driver device.
The GS12170 is packaged in a space-saving 12 mm by 12 mm 196-ball BGA package, and offers low power operation of less than 2W typically.
This makes the device ideal for adding UHD-SDI interfaces to existing HDMI 2.0 based UHDTV products, and for low-cost SDI/HDMI converters and extenders.
功能
- 在 HDMI 2.0 之间桥接的完全标准兼容 SDI 接口
- 在 10 位 4:2:2 采样时支持高达 60Hz 的 4K 视频格式
- 在单链路和多链路 SDI 接口之间转换,从 HD-SDI 至 12Gbps UHD-SDI
- 三种操作模式:
- SDI 转 HDMI 桥接模式
- HDMI 转 SDI 桥接模式
- SDI to SDI gearbox mode
- 频率为 48kHz 或 96kHz 时支持多达 16 个通道的数字音频去嵌入和嵌入
- Simultaneous de-embedding and embedding in all modes of operation
- 专用 AES/EBU 或 I2S 串行数字音频输入和输出
- HDMI InfoFrames 的提取和插入
- SDI 辅助数据包的提取和插入
- 提取和插入时间码 (TC) 数据包
- SDI Gearbox 模式还支持 GS12070 UHD-SDI Gearbox 的所有功能和特性
- Automatic and manual handling of SMPTE ST 352 packets
- 多链路 SDI 输入的自动偏移补偿
- 多链路 SDI 输入的自动输入链路顺序处理
- Four 100Ω differential inputs with input trace equalization up to 12dB
- 四个 100Ω 差分输出,可单独选择输出摆幅调节
- 单个 27MHz 参考时钟/晶体输入
- Gennum 串行外围设备接口 (GSPI) 串行控制和监控接口
- 典型功率 <2W
- 12 mm x 12 mm 196 焊球 BGA 封装(焊球间距为 0.8 mm)
- 无铅、无卤素且符合 RoHS / WEEE 标准
- UHDTV 监视器和显示器
- UHDTV 摄像机和便携式摄像机
- SDI/HDMI 转换器
- HDMI 扩展器
- SDI I/O 适配器
- SDI/HDMI 交换器和路由器
应用
封装
- BGA-196
订购代码
- GS12170-IBE3,189 颗/盘
Pb(Lead)-Free/RoHS-Green Info
Datasheets & Documentation
应用说明
- GS12170 External PLL Selection Guide for HDMI-to-SDI Mode
- Manually Writing the GS12170 SCDC Bit Clock Ratio and Scrambling Bit
- Recommended GS12170 SDI-to-HDMI Bridge Mode Initialization
- Recommended Semtech Video Product Evaluation and Reference Design Boards
- Recommended Semtech Video Product Evaluation and Reference Design Boards
工具与软件
- RDK-GS12170 Board MCU Source Code
- RDK-GS12170 Demonstration Software Source Code
- RDK-GS12170-H2S00 电路板设计文件 - 示意图 (OrCAD) 和布局 (Allegro)
- RDK-GS12170-H2S01 Board Design Files - Schematic (OrCAD) and Layout (Allegro)
- RDK-GS12170-S2H00 电路板设计文件 - 示意图 (OrCAD) 和布局 (Allegro)
- RDK-GS12170-S2S00 Board Design Files - Schematic (OrCAD) and Layout (Allegro)
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资源


本视频展示了 GS12170 SDI/HDMI……


GS12170 SDI / HDMI 桥接器有 3 个可配置的…
无论您是在体育场的巨型屏幕上观看棒球比赛的动作回放、在大屏幕电视上观看电影,还是在笔记本电脑上播放视频,都期望获得高质量的视听 (AV) 体验。超高清串行数字接口 (UHD-SDI) 和高清多媒体接口 (HDMI) 是数字 AV 传输的两个标准。UHD-SDI 对通过同轴电缆或光纤传输未压缩和未加密的数字 AV 信号加以标准化。HDMI 是一种数字接口,用于将高清、高速数字多轨音频和未压缩视频信号从 HDMI 兼容源传输到视听显示器。尽管二者都可以将超高清 AV 信号从信号源传输到显示器,但 HDMI 更适合连接电脑、游戏机、蓝光/DVD 播放器、电视、投影仪等消费电子产品。 UHD-SDI 是专业室内/室外视频制作和电视广播等高端应用的首选,因为它支持远距离传输,并借助电缆两端的物理锁定机制实现可靠连接。UHD-SDI 同轴电缆可以将信号传输远达 300 英尺,而 HDMI 电缆即使在 50 英尺以内也会出现信号过渡衰减的问题。这两种接口可以通过 HDMI-SDI 或 SDI-HDMI 转换器一起使用。例如,如图 1 所示,HDMI 显示器用于 SDI 流的置信度监控,从而无需使用经过专门校准的 SDI 专用显示器。
Circuit Protection for HDMI-SDI/SDI-HDMI…
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