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40Gbit/s sonet framer with multiple clock-crossing capability
40Gbit/s sonet framer with multiple clock-crossing capability
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机译:具有多个时钟交叉功能的40Gbit / s sonet成帧器
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摘要
A SONET framer with multiple clock-crossing capability for use in an optical cross-connect system. The input stage of the cross-connect includes a framer ASIC that performs both frame alignment of multiple data streams and retimes them with a system clock at a same frequency. The ASIC processes multiple clocks from PLL's and retimes the data with the system clock at the same frequency. The present invention nests the clock crossing function in the frame alignment function in order to align all the incoming data streams with the system clock. Advantages include reduced chip area and reduced power consumption.
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