Title :
A 20-Gb/s CMOS multichannel transmitter and receiver chip set for ultra-high-resolution digital displays
Author :
Fukaishi, Muneo ; Nakamura, Kazuyuki ; Heiuchi, Hideki ; Hirota, Yoshinori ; Nakazawa, Yoetsu ; Ikeno, Hidenori ; Hayama, Hiroshi ; Yotsuyanagi, Michio
Author_Institution :
Labs. of Silicon Syst. Res., NEC Corp., Kanagawa, Japan
Abstract :
A multichannel transmitter (TX) and receiver (RX) chip set operating at 20 Gb/s (5 Gb/s/spl times/4 ch) has been developed by using 0.25-/spl mu/m CMOS technology. To achieve multichannel data transmission and high-speed operation, the chip set features: (1) circuits for compensating the phase difference between multiple RX chips, which is due to data skew resulting from different lengths of transmission cables, and for compensating the frequency difference between the system clocks of the TX and RX chips; (2) a self-alignment phase detector with parallel output for a high-speed data-recovery circuit; and (3) a fully pipelined 8B10B encoder. At a 2.5-V power supply, the power consumption of the TX chip during 5-Gb/s operation is 500 mW and that of the RX chip is 750 mW. Four of these TX/RX chip sets can provide an aggregate bandwidth of 20 Gb/s.
Keywords :
CMOS digital integrated circuits; data communication equipment; flat panel displays; high-speed integrated circuits; low-power electronics; pipeline processing; receivers; transmitters; 0.25 mum; 2.5 V; 20 Gbit/s; 500 mW; 750 mW; CMOS multichannel transmitter; CMOS technology; aggregate bandwidth; chip set; data skew; frequency difference compensation; fully pipelined 8B10B encoder; high-speed data-recovery circuit; high-speed operation; multichannel data transmission; multichannel receiver; parallel output; phase difference compensation; power consumption; self-alignment phase detector; transmission cable length differences; ultra-high-resolution digital displays; CMOS technology; Cables; Circuits; Clocks; Data communication; Energy consumption; Phase detection; Phase frequency detector; Power supplies; Transmitters;
Journal_Title :
Solid-State Circuits, IEEE Journal of
