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A Burst-Mode Bit-Synchronization IC With Large Tolerance for Pulse-Width Distort
一种具有大脉冲宽度失真容限的突发模式位同步IC，适用于千兆以太网无源光网络上游传输。
脉冲宽度失真容限0.66 UI（超过IEEE 802.3ah规范0.22 UI）
突发模式位同步脉冲宽度失真千兆以太网无源光网络八相时钟
▸基于理论分析和实际电路参数，精确生成八相时钟以提高失真容限
▸增强型数据选择器集成脉冲宽度检测器，监控隔离比特的脉冲宽度
▸包含突发到串行转换器，便于与商用PON LSI连接
Abstract
A burst-mode bit-synchronization IC applied to the
upstream transmission in a gigabit Ethernet passive optical net-
work (PON) was experimentally verified to have a large tolerance
for pulse-width distortion within
0.66 UI. The extra tolerance
of 0.22 UI over the IEEE 802.3ah specification can be assigned
to additional distortion generated at an optical receiver incorpo-
rated into an optical line terminal. Such a large tolerance was at-
tained by precisely generated eight-phase clocks based on th