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A $0.18{\mu}m$ CMOS 3.2-Gb/s 4-PAM Serial Link Receiver Using Current Mode Signaling  

Lee, Jeong-Jun (Dept. of Electronic Eng., Sogang University)
Jeong, Ji-Kyung (Dept. of Electronic Eng., Sogang University)
Burm, Jin-Wook (Dept. of Electronic Eng., Sogang University)
Jeong, Young-Han (Hynix Semiconductor Inc.)
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Abstract
The design of a 3.2 Gb/s serial link receiver in $0.18{\mu}m$ CMOS process is presented. The major factors limiting the performance of high-speed links are transmission channel bandwidth, timing uncertainty. The design uses a multi-level signaling(4-PAM) to overcome these problems. Moreover, to increase data bit-rate and lower BER, we designed this circuit by using a current mode amplifier, Current-mode Logic(CML) sampling latches. The 4-PAM receiver achieves 3.2 Gb/s and BER is less than $1.0\;{\times}\;10^{-12}$. The $0.5\;{\times}\;0.6\;mm^2$ chip consumes 49 mA at 3.2 Gb/s from a 1.8-V supply.
Keywords
4-PAM; Transceiver; Receiver; Transmitter; CMOS;
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