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Hybrid High-Speed/Low-Speed Output Latch in 10 GBPS Interface with Half Rate Clock
Hybrid High-Speed/Low-Speed Output Latch in 10 GBPS Interface with Half Rate Clock
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机译:具有半速率时钟的10 GBPS接口的混合高速/低速输出锁存器
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摘要
A high-speed serial demultiplexer receives over four high-speed serial data lines at a nominal rate of 10 GBPS and demultiplexes the data to 16 lines with a rate of 2.5 GHz each. The demultiplexer circuits are configured as two D type latches, one of which latches data on the positive edge of a 5 GHz clock, the other of which latches every other bit of the 10 GBPS data on the negative edge of the 5 GHz clock, alternating with the first D latch. Each of the two D latches is configured as a master-slave flip-flop that includes a master D latch and a slave D latch. The master receives the data at the 10 GBPS rate and clocks every other bit to its output using an edge of the 5 GHz clock (the positive edge for one of the D-latches, the negative for the other). The slave clocks the data form the master to its output on the opposite edge of the clock following the master.
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