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A fractional-N frequency synthesizer-based multi-standard I/Q carrier generation system in0.13μm CMOS
Lou, Wenfeng; Geng, Zhiqing; Feng, Peng; Wu, Nanjian; Wu, N.(nanjian@semi.ac.cn)
2011
Source PublicationJournal of Semiconductors
ISSN16744926
Volume32Issue:6Pages:65004
AbstractThis paper proposes a sigma- delta fractional-N frequency synthesizer-based multi-standard I/Q carrier generation system. With reasonable frequency planning, the system can be used in multi-standard wireless communication applications(GSM, WCDMA, GPRS, TD-SCDMA, WLAN(802.11a/b/g)). The implementation is achieved by a0.13μm RF CMOS process. The measured results demonstrate that three quadrature VCOs(QVCO) continuously cover the frequency from3.1 to6.1 GHz(65.2%), and through the successive divide-by-2 prescalers to achieve the frequency from0.75 to6.1 GHz continuously. The chip was fully integrated with the exception of an off-chip filter. The entire chip area is only3.78 mm2, and the system consumes a21.7 mA@1.2 V supply without output buffers. The lock-in time of the PLL frequency synthesizer is less than4μs over the entire frequency range with a direct frequency presetting technique and the auxiliary non-volatile memory(NVM) can store the digital configuration signal of the system, including presetting signals to avoid the calibration process case by case.?2011 Chinese Institute of Electronics.
metadata_83半导体超晶格国家重点实验室
KeywordCmos Integrated Circuits Frequency Synthesizers Modulators Variable Frequency Oscillators Wireless Telecommunication Systems
Subject Area半导体物理
Indexed ByEI
Language英语
Date Available2012-06-14
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/23059
Collection半导体超晶格国家重点实验室
Corresponding AuthorWu, N.(nanjian@semi.ac.cn)
Recommended Citation
GB/T 7714
Lou, Wenfeng,Geng, Zhiqing,Feng, Peng,et al. A fractional-N frequency synthesizer-based multi-standard I/Q carrier generation system in0.13μm CMOS[J]. Journal of Semiconductors,2011,32(6):65004.
APA Lou, Wenfeng,Geng, Zhiqing,Feng, Peng,Wu, Nanjian,&Wu, N..(2011).A fractional-N frequency synthesizer-based multi-standard I/Q carrier generation system in0.13μm CMOS.Journal of Semiconductors,32(6),65004.
MLA Lou, Wenfeng,et al."A fractional-N frequency synthesizer-based multi-standard I/Q carrier generation system in0.13μm CMOS".Journal of Semiconductors 32.6(2011):65004.
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