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JSSC 2015第8期RF & Wireless65nm

A 5064 Gbs Serializing Transmitter With a 4-Tap LC-Ladder-Filter-Based FFE in 65

本文提出了一种基于LC梯型滤波器的4抽头FFE结构,用于50-64 Gb/s串行化发射机。
64.5 Gb/s, 3.1 pJ/bit
串行化发射机LC梯型滤波器FFE多路复用器65nm CMOS
创新点1:LC梯型滤波器FFE结构(电路创新):采用LC梯型滤波器设计方法,显著提升了延迟线和输出组合器的带宽,优化了信号传输性能,支持高达64.5 Gb/s的数据速率。
创新点2:输出组合器优化减少电感数量(电路创新):通过合理设计输出组合器的布局,减少了所需电感的数量,从而降低了芯片面积,提升了集成度和成本效益。
创新点3:新型4:1多路复用器降低功耗(电路创新):引入一种新型4:1多路复用器作为串行器的最终级,有效降低了整体功耗,实现了3.1 pJ/bit的高能效比。
创新点4:65 nm CMOS工艺实现高能效(系统创新):基于65 nm CMOS工艺设计并制造,在保证高性能的同时实现了低功耗和高集成度,展示了工艺与设计的协同优化。
Abstract
This paper presents a complete 50–64 Gb/s serializing transmitter including a 4-tap e qualizer. An LC-based FFE struc- ture is proposed. The FFE improves the bandwidth of th ed e l a y line and the output combiner by applying the design methodology of LC-ladder filters. Proper arran gement of the output combiner reduces the required number of inductors and hence r educes the area. In addition, a novel 4:1 multiplexer (MUX) is used as the final stage of the serializer to reduce power. Designed and