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Title [REGULAR PAPER]A Current-mode Logic Driver with Two-tap Pre-emphasis using Reconfigurable Capacitive Peaking for -12.3 dB Insertion Loss
Authors Yun-Sik Choi(Yun-Sik Choi) ; Yohan Hong(Yohan Hong) ; Woojoo Lee(Woojoo Lee)
Page pp.270-275
ISSN 1598-1657
Keywords Transmitter ; current-mode logic (CML) pre-emphasis output driver ; capacitive peaking method
Abstract This paper proposes a 10-Gb/s output driver based on Current-Mode Logic (CML) driver with 2-tap including pre-emphasis and de-emphasis method by using reconfigurable capacitive peaking. The proposed is implemented in 55-nm CMOS process with 1.2 V supply. The proposed output driver can compensate for insertion loss -12.3 dB just with 2-tap and controlling the number of capacitor that is able to change pre-emphasis gain. Additionally, the de-emphasis gain is able to be changed by using 2-tap current source. Thus, the proposed achieves about 3.8 times higher gain than the conventional CML driver and evenly reduces power consumption up to 56.32% compared the conventional CML driver with the same of number of taps.