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A 0.18-/spl mu/m CMOS 10-Gb/s Dual-Mode 10-PAM Serial Link Transceiver

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4 Author(s)
Bongsub Song ; Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea ; Kyunghoon Kim ; Junan Lee ; Jinwook Burm

A 0.18-μm CMOS 10-Gb/s serial link transceiver is presented. For the power-efficiency, the transceiver employs a dual-mode 10-level pulse amplitude modulation (10-PAM) technique enabling to transmit 4-bit per symbol. Since the operating frequency of the internal circuits is reduced by 4, the power dissipation of the transceiver is much reduced. In addition, compared with a standard 16-PAM technique, the dual-mode 10-PAM technique can reduce power dissipation by 62.5%. The transmitter including a pseudo random bit sequence (PRBS) generator, multiplexers, an encoder, and an output driver achieves 10-Gb/s data-rate with 235-mW power dissipation such that the figure of merit (FOM) of the transmitter part is 23.5 mW/(Gb/s). The receiver including a flash type analog-to-digital converter (ADC), a decoder, and output drivers achieves 10-Gb/s data-rate and 10-12 BER with 190-mW power dissipation such that FOM of the receiver part is 19 mW/(Gb/s). The proposed 10-PAM transceiver was implemented in a 0.18-μm standard CMOS technology with 0.3 × 0.8-mm2 active area.

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Circuits and Systems I: Regular Papers, IEEE Transactions on  (Volume:60 ,  Issue: 2 )