Electronics Optics & Control, Volume. 29, Issue 4, 68(2022)
Design of New CTLE Equalizer with Negative Capacitance Structure
As the rate of data transmission continues to increasethe data loss caused by the channel becomes more and more serious.Using the traditional Continuous-Time Linear Equalizer (CTLE) to equalize and compensate for the signal can no longer offset the serious signal attenuation caused by the channel.In order to better compensate for the attenuationthe traditional CTLE equalizer is further improvedand a new CTLE based on negative capacitance is proposed.On the basis of the traditional CTLEtwo cross-connected MOS transistors are used to form a negative capacitorwhich is superimposed on the output of the traditional first-level CTLE to form a second-level structure,which can increase high-frequency gain and achieve greater bandwidthso as to provide better compensation for channel attenuation.The simulation results show that at a data rate of 25 Gibit/sthe equalizer with a negative capacitance has good compensation capability.After equalizationthe horizontal opening of the eye diagram reaches 0.9 Unit Interval (UI).The new CTLE based on negative capacitance is helpful for improving the overall data transmission rate.
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LU Dechao, ZHENG Xuqiang, LYU Fangxu, WANG Heming, CHEN Jiang, WU Miaomiao, LIU Tao. Design of New CTLE Equalizer with Negative Capacitance Structure[J]. Electronics Optics & Control, 2022, 29(4): 68
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Received: Mar. 21, 2021
Accepted: --
Published Online: Apr. 22, 2022
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