NS 公司的SDXILEVK是三速SDI和视频时钟子板卡,专门用于Xilinx Spartan-3A/3E FPGA的开发套件. SDXILEVK子板卡通过EXP连接器能直接插到Spartan开发板,为广播视频系统设计师提供了完整平台,能块速评估和出设计原型,从而降低产品面市时间.本文介绍了DXILEVK子板卡的主要特性和优势, SDXILEVK和Xilinx Spartan-3A主开发板的连接框图以及DXILEVK子板卡的电路图与材料清单(BOM).

Triple-rate SDI & video clocking daughter card for Xilinx Spartan-3A/3E FPGAs National Semiconductor in collaboration with Avnet and Xilinx developed a triple-rate SDI and video clocking daughter card for the Xilinx Spartan-3A/3E development kits. The daughter card plugs directly into the Spartan development board through an EXP connector. The combined solution of the daughter card and the development kit provides broadcast video system designers a comprehensive platform for rapid evaluation and prototyping of new designs to reduce time to market.



图1.SDXILEVK 硬件平台



图2.SDXILEVK和Xilinx Spartan-3A主开发板的连接框图

The SDXILEVK daughter card contains:

LMH0344 Triple-rate SDI Adaptive Cable Equalizer

LMH0340 Triple-rate SDI Serializer with integrated cable driver

LMH0341 Triple-rate SDI deserializer with reclocked loop through

LMH1981 Multi-Format Video Sync Separator

LMH1982 Multi-Rate Video Clock Generator

DS25CP104 4x4 LVDS Crosspoint Switch

LP3878 Low Noise LDO





图3.DXILEVK子板卡电路图(1)



图4.DXILEVK子板卡电路图(2)



图5.DXILEVK子板卡电路图(3)



图6.DXILEVK子板卡电路图(4)



图7.DXILEVK子板卡电路图(5)