Design of a fast digital double relaxation oscillation SQUID
作者： M. Podt , A.J. Mieog , J. Flokstra , H. Rogalla
DOI: 10.1109/77.919573
关键词: Signal generator 、 Noise (electronics) 、 Clock signal 、 Relaxation oscillator 、 Slew rate 、 Quantization (signal processing) 、 Relaxation (approximation) 、 Physics 、 Electrical engineering 、 Oscillation
摘要: A fast digital Double Relaxation Oscillation SQUID (DROS) with a relaxation oscillation frequency of 100 MHz has been developed. The DROS incorporates and superconducting up-down counter that supplies the feedback flux. major advantage is oscillations generate an on-chip clock signal therefore, no external required. In order to maximize slew rate without compromising sensitivity, quantization unit flux was adapted noise DROS. This resulted in designed 5/spl middot/10/sup 6/ /spl Phi//sub 0//s. We will discuss design optimization, numerical simulations, layout some experimental results
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