DocumentCode :
1012739
Title :
Shift registers and correlators using a two-phase single-flux quantum pulse clock
Author :
Yuh, P.-F.
Author_Institution :
HYPRES Inc., Elmsford, NY, USA
Volume :
3
Issue :
2
fYear :
1993
fDate :
6/1/1993 12:00:00 AM
Firstpage :
3009
Lastpage :
3012
Abstract :
A two-phase clocking scheme for rapid single flux quantum logic circuits, in particular, shift registers and correlators, is discussed. The two-phase pulse clock is generated on chip with one external clock line. The use of a two-phase clock improves the clock operating margins and eliminate the racethrough problem. A 32-b shift register has been built and tested up to a clock frequency of 21.6 GHz. A one-bit digital correlator with 32 stages has also been tested at low speed. The chips are fabricated using a Nb process.<>
Keywords :
correlators; shift registers; superconducting junction devices; superconducting logic circuits; synchronisation; 21.6 GHz; Nb process; correlators; digital correlator; quantum logic circuits; shift registers; single-flux quantum pulse clock; two-phase clocking scheme; Circuit testing; Clocks; Correlators; DC generators; Inductors; Logic circuits; Pulse circuits; Pulse generation; Shift registers; Switches;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/77.257227
Filename :
257227
Link To Document :
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