Title :
Single flux quantum crossbar switch
Author :
Qing Ke ; Dalrymple, B.J. ; Durand, D.J. ; Spargo, J.W.
Author_Institution :
TRW Inc., Redondo Beach, CA, USA
fDate :
6/1/1997 12:00:00 AM
Abstract :
A crossbar switch has been designed using Single Flux Quantum (SFQ) gates exclusively for all internal functions. A 4/spl times/4 prototype has been fabricated in our Nb process foundry with J/sub c/ of 2000 A/cm/sup 2/. We report on the design and performance of the switch and of an individual crosspoint element at high data rates (/spl ges/1 Gbps). A novel design of a double-edge-triggered dc/SFQ converter is discussed. The requirements for output amplification and on-chip versus off-chip amplifier issues will be presented.
Keywords :
electronic switching systems; superconducting switches; 1 Gbit/s; Nb; Nb process foundry; SFQ gate; critical curent density; crosspoint element; data rate; double-edge-triggered DC/SFQ converter; fabrication; off-chip amplifier; on-chip amplifier; output amplification; single flux quantum crossbar switch; Communication switching; Decoding; Josephson junctions; Prototypes; Pulse generation; Signal generators; Space vector pulse width modulation; Superconducting logic circuits; Switches; Switching converters;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
