Title :
Operation of practical eSFQ circuits
Author :
Volkmann, Mark H. ; Sahu, Akanksha ; Dotsenko, Andriy V. ; Mukhanov, Oleg A.
Author_Institution :
Dept. of Electron. Eng., Univ. of Stellenbosch, Stellenbosch, South Africa
Abstract :
We have designed and tested energy-efficient single flux quantum (eSFQ) circuits for use in practical circuits. The first circuit is a 184-bit shift register for acquisition memory to store short transient events. The second circuit is a 16-bit deserializer integrated with an analog-to-digital converter modulator. The deserializer converts a high speed oversampling delta modulator 1-bit data stream into 16 parallel digital outputs at 1/16 of input data rate. In this work, we report preliminary functional and high-speed operation of some of these eSFQ circuits including their margins of operation at different clock speeds, maximum operation frequencies, and power dissipation.
Keywords :
analogue-digital conversion; logic design; shift registers; superconducting logic circuits; acquisition memory; analog-to-digital converter modulator; clock speed; delta modulator; deserializer; eSFQ circuit; energy-efficient single flux quantum; power dissipation; shift register; word length 16 bit; word length 184 bit; Clocks; Delays; Frequency modulation; Pins; Shift registers; Testing; deserializer; eSFQ; energy-efficiency; low-power; shift-register;
Conference_Titel :
Superconductive Electronics Conference (ISEC), 2013 IEEE 14th International
Conference_Location :
Cambridge, MA
Print_ISBN :
978-1-4673-6369-3
DOI :
10.1109/ISEC.2013.6604279
