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JSSC 2013第11期RF & Wireless40nmEqualizer

A 10-Gbs Adaptive Parallel Receiver With Joint XTC and DFE Using Power Detection

一款10-Gb/s自适应并行接收器,采用联合XTC和DFE技术,通过功率检测实现FEXT和ISI的消除。
40nm CMOS, 1.3V, 10-Gb/s, 17.55mW, 0.0352mm²
自适应接收器串扰消除决策反馈均衡器功率检测10-Gb/s
创新点1:基于微分器的XTC技术(方法创新):采用微分器实现串扰消除(XTC),有效抑制远端串扰(FEXT),提升信号完整性。
创新点2:单抽头DFE技术(电路创新):使用单抽头判决反馈均衡器(DFE),简化电路结构,降低功耗,同时有效消除符号间干扰(ISI)。
创新点3:FEXT和ISI的数字自适应更新机制(系统创新):通过功率检测实现FEXT和ISI系数的数字自适应更新,确保在不同微带线长度下的性能优化,校准时间仅为2.424秒。
创新点4:低功耗与小型化设计(电路创新):采用40nm CMOS工艺,最大功耗仅为17.55mW,核心面积仅0.0352mm²,实现高性能与低功耗的平衡。
Abstract
A 10-Gb/s adaptive parallel receiver with joint crosstalk canceller (XTC) and decision-feedback equalizer (DFE) is presented. A differentiator-based XTC and a one-tap DFE are adapted to cancel far-end cros stalk (FEXT) and inter-symbol interference (ISI), respective ly. When the lengths of the coupled microstrip lines change, an FEXT detector measures and com- pares the powers of FEXT and XTC to digitally update the XTC coefficient. Then, an ISI detector measures and compares the powers of the re