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	A 79kHz, 24ppm/��C, on-chip CMOS relaxation oscillator with a combination of pre-checking compensation and integral feedback
	Zhou, Lili ; Yang, Lijie ; Ye, Le ; Zhang, Xing ; Liao, Huailin
	2014
英文摘要	An on-chip CMOS relaxation oscillator employing a pre-checking compensation and integral feedback structure is proposed in this paper. The oscillator adopts a pre-checking scheme to eliminate the frequency variation caused by the comparator delay. Then the error caused by the comparators' offset voltage and the unquenched comparator-delay from the pre-checking mode are suppressed by the RC-integral feedback. The structure achieves effective suppression of the low-offset phase noise and frequency variation. This circuit dissipates 37uW in the 0.18um CMOS process and achieves a -70dBc/Hz phase-noise at 10Hz offset. It generates a 79kHz clock source with frequency variations of -0.2% ?? 0.03% for a supply voltage change from 0.9 to 1.1 V and -0.15% ?? 0.26% for a temperature change from -40 to 125??C. ? 2014 IEEE.; EI; 0
语种	英语
DOI标识	10.1109/ICSICT.2014.7021302
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/329406]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhou, Lili,Yang, Lijie,Ye, Le,et al. A 79kHz, 24ppm/��C, on-chip CMOS relaxation oscillator with a combination of pre-checking compensation and integral feedback. 2014-01-01.

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