C Element
(Coincidence Buffer)
Schematics
All parameters are in PSCAN dimensionless
units.
This particular C element has been optimized primarily for the lowest
possible static I/O currents and matching I/O impedance, and secondary
for the highest XI and XJ margins.
Mealey Machine
How It Works
The element consists of two quantizing interferometers J0-L3-J1 and
J2-L4-J1. Each of the interferometers alone can hold an incoming SFQ
pulse, either A or B, respectively. When both A
and B arrive in any order, they together switch the junction
J1, reset the element and produce the output Q.
Files, necessary to simulate the circuit.
Transient Waveforms
Layout
This particular design has never been fabricated.
References