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Innovative 28 Gb/s quarter rate receiver with data-rate-tolerant adaptive continuous-time linear equalizer
Microelectronics Journal ( IF 2.2 ) Pub Date : 2020-11-26 , DOI: 10.1016/j.mejo.2020.104946
Weijia Han , Yongsheng Wang , Jinxiang Wang

This paper presents a 28 Gb/s receiver with a data-rate-tolerant adaptive continuous-time linear equalizer (CTLE). The adaptive CTLE works based on the spectrum balancing method. An equalizer boost control loop is used to adjust the equalizer boost while a corner frequency control loop guarantees data-rate adaption. The speed of similar devices is limited by the necessary slicer. In this study, rather than the output signal of a slicer, the recovered data is used as the input for the corner frequency control loop. A data sampler may have oversize bandwidth during the sample period and a high gain during the regeneration period, thus the proposed structure can secure a clean waveform at high speeds. The quarter rate structure further relaxes the slicer-related speed limit. The receiver consumes 232.2 mW with a 1.2 V supply when realized in 55-nm CMOS technology while the equalizer consumes 70 mW.



中文翻译:

具有数据速率容限的自适应连续时间线性均衡器的创新型28 Gb / s四分之一速率接收机

本文提出了一种具有数据速率容限的自适应连续时间线性均衡器(CTLE)的28 Gb / s接收机。自适应CTLE基于频谱平衡方法工作。均衡器升压控制环路用于调整均衡器升压,而转角频率控制环路可确保数据速率自适应。相似设备的速度受到必要的限幅器的限制。在这项研究中,恢复的数据而不是限幅器的输出信号,被用作转角频率控制环路的输入。数据采样器在采样期间可能具有过大的带宽,而在再生期间可能具有高增益,因此,所提出的结构可以确保高速的干净波形。四分之一速率结构进一步放宽了切片器相关的速度限制。接收器的功耗为232.2 mW(1)。

更新日期:2021-01-07
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