{"title":"采用电容耦合的0.8 v CMOS正交LC压控振荡器","authors":"Chan Tat Fu, H. Luong","doi":"10.1109/ASSCC.2007.4425724","DOIUrl":null,"url":null,"abstract":"A new concept for quadrature coupling of LC oscillators is introduced and demonstrated in a 4.5-GHz CMOS quadrature voltage-controlled oscillator (QVCO). By employing cupacitivc coupling of second harmonic components, quadrature outputs can be obtained at a low supply voltage without extra power consumption. Fabricated in a 0.13 mum CMOS process and operated at 0.8-V supply, the proposed QVCO measures phase noise of-112dBc/Hz at 1M offset from -1.91GHz while drawing a total current of 4mA, which corresponds to a FOM of 181 dB. The core area is 0.278mm2.","PeriodicalId":186095,"journal":{"name":"2007 IEEE Asian Solid-State Circuits Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"35","resultStr":"{\"title\":\"A 0.8-V CMOS quadrature LC VCO using capacitive coupling\",\"authors\":\"Chan Tat Fu, H. Luong\",\"doi\":\"10.1109/ASSCC.2007.4425724\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new concept for quadrature coupling of LC oscillators is introduced and demonstrated in a 4.5-GHz CMOS quadrature voltage-controlled oscillator (QVCO). By employing cupacitivc coupling of second harmonic components, quadrature outputs can be obtained at a low supply voltage without extra power consumption. Fabricated in a 0.13 mum CMOS process and operated at 0.8-V supply, the proposed QVCO measures phase noise of-112dBc/Hz at 1M offset from -1.91GHz while drawing a total current of 4mA, which corresponds to a FOM of 181 dB. The core area is 0.278mm2.\",\"PeriodicalId\":186095,\"journal\":{\"name\":\"2007 IEEE Asian Solid-State Circuits Conference\",\"volume\":\"15 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"35\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 IEEE Asian Solid-State Circuits Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ASSCC.2007.4425724\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 IEEE Asian Solid-State Circuits Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ASSCC.2007.4425724","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 35
摘要
介绍了LC振荡器正交耦合的新概念，并在4.5 ghz CMOS正交压控振荡器(QVCO)上进行了演示。利用二次谐波分量的空间耦合，可以在低电源电压下获得正交输出，而不需要额外的功耗。该QVCO采用0.13 μ m CMOS工艺，工作电压为0.8 v，在-1.91GHz的1M偏移处测量相位噪声为112dbc /Hz，总电流为4mA，对应于FOM为181 dB。核心面积0.278mm2。
A 0.8-V CMOS quadrature LC VCO using capacitive coupling
A new concept for quadrature coupling of LC oscillators is introduced and demonstrated in a 4.5-GHz CMOS quadrature voltage-controlled oscillator (QVCO). By employing cupacitivc coupling of second harmonic components, quadrature outputs can be obtained at a low supply voltage without extra power consumption. Fabricated in a 0.13 mum CMOS process and operated at 0.8-V supply, the proposed QVCO measures phase noise of-112dBc/Hz at 1M offset from -1.91GHz while drawing a total current of 4mA, which corresponds to a FOM of 181 dB. The core area is 0.278mm2.
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