{"title":"带DC-DC供电的d类压控振荡器的0.55mW分数n锁相环在NB-IoT中实现优于-66dBc分数杂散和参考杂散","authors":"Hossein Rahmanian Kooshkaki, P. Mercier","doi":"10.1109/CICC48029.2020.9075944","DOIUrl":null,"url":null,"abstract":"This paper presents a sub-mW single supply fractional-NPLL for Narrowband IoT (NB-IoT) applications. The analog PLL meets the relatively strict spur requirement of NB-IoT while using a low power class-D oscillator with a resistive header, which improves phase noise by 3dB and reduces power consumption by 25% with negligible area overhead. The VCO, working at 729-960MHz, is powered by an on-chip DC-DC converter with 90% efficiency designed in a manner to not degrade the spur performance of the PLL, which is measured to be -67.5dBc for reference and -66.3dBc for fractional spurs.","PeriodicalId":409525,"journal":{"name":"2020 IEEE Custom Integrated Circuits Conference (CICC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":"{\"title\":\"A 0.55mW Fractional-N PLL with a DC-DC Powered Class-D VCO Achieving Better than -66dBc Fractional and Reference Spurs for NB-IoT\",\"authors\":\"Hossein Rahmanian Kooshkaki, P. Mercier\",\"doi\":\"10.1109/CICC48029.2020.9075944\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a sub-mW single supply fractional-NPLL for Narrowband IoT (NB-IoT) applications. The analog PLL meets the relatively strict spur requirement of NB-IoT while using a low power class-D oscillator with a resistive header, which improves phase noise by 3dB and reduces power consumption by 25% with negligible area overhead. The VCO, working at 729-960MHz, is powered by an on-chip DC-DC converter with 90% efficiency designed in a manner to not degrade the spur performance of the PLL, which is measured to be -67.5dBc for reference and -66.3dBc for fractional spurs.\",\"PeriodicalId\":409525,\"journal\":{\"name\":\"2020 IEEE Custom Integrated Circuits Conference (CICC)\",\"volume\":\"16 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"11\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE Custom Integrated Circuits Conference (CICC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CICC48029.2020.9075944\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE Custom Integrated Circuits Conference (CICC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CICC48029.2020.9075944","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 0.55mW Fractional-N PLL with a DC-DC Powered Class-D VCO Achieving Better than -66dBc Fractional and Reference Spurs for NB-IoT
This paper presents a sub-mW single supply fractional-NPLL for Narrowband IoT (NB-IoT) applications. The analog PLL meets the relatively strict spur requirement of NB-IoT while using a low power class-D oscillator with a resistive header, which improves phase noise by 3dB and reduces power consumption by 25% with negligible area overhead. The VCO, working at 729-960MHz, is powered by an on-chip DC-DC converter with 90% efficiency designed in a manner to not degrade the spur performance of the PLL, which is measured to be -67.5dBc for reference and -66.3dBc for fractional spurs.
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