New design of single-bit all-digital RSFQ autocorrelator
New design of single-bit all-digital RSFQ autocorrelator
复制标题
单位全数字RSFQ自相关器的新设计
DOI：
10.1109/77.621797
复制
发表时间：
1997
影响因子：
1.8
通讯作者：
A. Rylyakov
中科院分区：
文献类型：
--
作者：
A. Rylyakov
我们提出了一种新的设计的快速单通量量子（RSFQ）的全数字一位自相关器的亚毫米光谱应用，具有4 GHz的输入信号带宽，双过采样量化器，和16 Mbps的每通道的输出速率。自相关器的延迟线是基于一个循环移位寄存器与异或门执行在每一级的延迟和未延迟的单比特信号的乘法。乘法的结果是由室温下的电子被预缩放后，在片上的二进制计数器组成的10 T触发器，每级的累积。我们报告的实验测试结果的16级自相关延迟线与乘法和8个低功耗T触发器二进制计数器的线性阵列，所有制造在HYPRES的标准3.5 /spl μ/m1000 A/cm/sup 2/Nb三层工艺。我们还讨论了RSFQ电路中最小功耗的物理和技术限制。
We present a new design of a Rapid Single-Flux-Quantum (RSFQ) all-digital one-bit autocorrelator for submillimeter spectrometry applications, featuring 4 GHz input signal bandwidth, double oversampling quantizer, and 16 Mbps-per-channel output rate. The delay line of the autocorrelator is based on a circular shift register with XOR gates performing multiplication of the delayed and undelayed single-bit signals at every stage. The multiplication results are accumulated by room-temperature electronics after being prescaled in on-chip binary counters consisting of 10 T flip-flops per stage. We report results of experimental testing of a 16-stage autocorrelator delay line with multiplication and for a linear array of 8 low-power T flip-flop binary counters, all fabricated in HYPRES' standard 3.5 /spl mu/m 1000 A/cm/sup 2/ Nb-trilayer process. We also discuss physical and technical limits of the minimal power dissipation in RSFQ circuits.