DocumentCode :
1342787
Title :
A 2-Gbaud 0.7-V swing voltage-mode driver and on-chip terminator for high-speed NRZ data transmission
Author :
Ahn, Gijung ; Jeong, Deog-Kyoon ; Kim, Gyudong
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ., South Korea
Volume :
35
Issue :
6
fYear :
2000
fDate :
6/1/2000 12:00:00 AM
Firstpage :
915
Lastpage :
918
Abstract :
A large-swing, voltage-mode driver and an on-chip termination circuit are presented for high-speed nonreturn-to-zero (NRZ) data transmission through a copper cable. The proposed driver with active pull-up and pull-down can generate a 700-mV signal to deliver a 2 Gbaud serial NRZ data stream. Low output impedance offered by simple negative-feedback resistors alleviates the detrimental effect of the parasitic capacitance by supplying fast current impulses. A proposed on-chip termination circuit provides termination impedance to a mid-supply termination voltage with the benefit of reduced parasitic capacitance and better termination characteristics compared with off-chip termination. The driver and termination circuits have been incorporated in a 2 Gbaud transceiver chip and fabricated in 0.35 /spl mu/m CMOS technology. Measurements show a 1.4 V differential swing with a slew rate of 2.5 V/ns at the receiver output and a 65% reduction of reflection by the on-chip termination circuit with power consumption of 191 mW at 3.3 V supply.
Keywords :
CMOS integrated circuits; circuit feedback; data communication equipment; digital communication; driver circuits; transceivers; 0.35 micron; 191 mW; 3.3 V; CMOS technology; NRZ data transmission; active pull-down; active pull-up; copper cable; high-speed NRZ data transmission; low output impedance; negative-feedback resistors; onchip terminator; parasitic capacitance; termination characteristics; termination circuit; transceiver chip; voltage-mode driver; CMOS technology; Communication cables; Copper; Data communication; Driver circuits; Impedance; Optical signal processing; Parasitic capacitance; Signal generators; Voltage;
fLanguage :
English
Journal_Title :
Solid-State Circuits, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9200
Type :
jour
DOI :
10.1109/4.845196
Filename :
845196
Link To Document :
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