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A wide tunable fast settling 4-bit digitally controlled oscillator for reconfigurable multi-band RF applications

机译:宽可调速稳定4位数控振荡器,用于可重配置的多频带RF应用

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摘要

A digitally tunable differential active inductor based 4-bit digitally controlled oscillator to reduce the area and cost, for reconfigurable mull-band RF applications is proposed in this work. This design attains coarse frequency tuning of 0.571-3.74 GHz for digital control word {1 to 15} with percentage tuning range (%TR) of 147.02%. The noise analysis shows phase noise of -95.5 to -100.5 dBc/Hz @ 5 MHz offset with power consumption varying from 1.02 to 9.5 mW. The design achieves Figure-of-merit (FOM) of -146.07 dBc/Hz and Figure-of-merit with % TR (FOMT) of -169.416 dBc/Hz. The proposed design occupies an area of 44 mu m x 18 mu m in standard 180 nm CMOS technology. A thorough post layout analysis of the design including the parasitic RC components to test the DCO stability over process, voltage and temperature variations (PVT), has been carried out and the results are plotted.
机译:在这项工作中,提出了一种基于数字可调差分有源电感器的4位数控振荡器,以减小面积和成本,以用于可重构的ull-band RF应用。对于数字控制字{1到15},此设计可实现0.571-3.74 GHz的粗调,其调谐范围(%TR)为147.02%。噪声分析显示,在5 MHz偏移下,相位噪声为-95.5至-100.5 dBc / Hz,功耗为1.02至9.5 mW。该设计实现的品质因数(FOM)为-146.07 dBc / Hz,并且具有%TR的品质因数(FOMT)为-169.416 dBc / Hz。在标准的180 nm CMOS技术中,提出的设计占地44μmx 18μm。对设计进行了彻底的布局后分析,包括寄生RC组件,以测试DCO在工艺,电压和温度变化(PVT)上的稳定性,并对结果进行绘图。

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