5-Bit Quasi-Sinusoidal Voltage Waveform Synthesized Using Single-Flux-Quantum Pulse-Frequency Modulation
5-Bit Quasi-Sinusoidal Voltage Waveform Synthesized Using Single-Flux-Quantum Pulse-Frequency Modulation
复制标题
使用单通量量子脉冲频率调制合成的 5 位准正弦电压波形
DOI：
10.1109/tasc.2012.2234362
复制
发表时间：
2013
影响因子：
1.8
通讯作者：
M. Maezawa
中科院分区：
文献类型：
--
作者：
Y. Mizugaki;K. Kuroiwa;M. Moriya;H. Shimada;M. Maezawa
正弦电压波形的合成在单磁通量子(SFQ)数字电子技术中有着独特的应用。介绍了一种基于SFQ脉冲频率调制的波形合成器。它包括集成在同一芯片上的可变SFQ脉冲数倍增器(PNM)和编码产生器(CG)。输出电压由变量PNm中的倍增系数决定，该变量由CG的代码控制，而不是由室温电子器件控制。可变PNM实现了5位分辨率，倍增系数在33到之间。CG生成16步准正弦波形的5位代码。包括I/O元件在内的整个电路采用SFQ数字单元库设计，并采用Nb集成工艺制造。在低速测试中，通过对单频Q脉冲进行计数，证实了16阶准正弦波形的倍增系数的调制，而在156.25μ的高速单频Q输入下，验证了11 MHz V峰谷值的电压波形。
Synthesis of sinusoidal voltage waveform is a unique application in single-flux-quantum (SFQ) digital electronics. In this paper, the authors present a waveform synthesizer based on SFQ pulse-frequency modulation. It comprises a variable SFQ pulse-number-multiplier (PNM) and a code generator (CG) integrated on the same chip. The output voltage is determined by the multiplication factor in the variable-PNM, which is controlled by the code from the CG instead of room-temperature electronics. The variable-PNM realizes 5-bit resolution with the multiplication factors between 33 and 64. The CG generates the 5-bit codes for 16-step quasi-sinusoidal waveform. The whole circuits including I/O elements are designed using an SFQ digital cell library, and fabricated using a niobium integration process. The modulation of the multiplication factor for the 16-step quasi-sinusoidal waveform is confirmed by counting SFQ pulses in the low-speed testing, whereas the voltage waveform of 11 μV peak-to-valley is demonstrated using a high-speed SFQ input of 156.25 MHz.
可变SFQ脉冲数乘法器的设计与功能测试
DOI：
--
发表时间：
2011
期刊：
Physica C : Superconductivity
影响因子：
--
作者：
斎藤淳;田中丈之;守屋雅隆;小林忠行;水柿義直;前澤正明
通讯作者：
前澤正明