JSSC 2013第2期RF & Wireless65nmEqualizer

A 75-Gbs One-Tap-FFE Transmitter With Adaptive Far-End Crosstalk Cancellation Us

一种采用65nm CMOS工艺的自适应远端串扰消除发射机，集成单抽头FFE和XTC技术，最高速率7.5Gb/s。

65nm CMOS, 1.2V, 7.5Gb/s, 26.4mW, 0.0307mm²

单抽头FFE远端串扰消除自适应校准CMOS发射机高速互连

▸单抽头前馈均衡器(FFE)与自适应远端串扰(XTC)消除技术融合

▸基于占空比检测的数字控制逆脉冲串扰消除

▸FFE与XTC电路共享以降低功耗

Abstract

A 2.5-7.5-Gb/s transmitter with one-tap feed-for- ward equalizer (FFE) and adaptive far-end crosstalk (FEXT) cancellation is presented. To cancel the intersymbol interference, the one-tap FFE is also employed. A crosstalk canceller (XTC) is adapted to cancel FEXT by using inverse pulses. To cancel the FEXT due to the coupled microstrip lines with various spacing, the pulse amplitude of the XTC is digitally controlled by using the proposed duty cycle detection. The one-tap FFE and the XTC are mer