An ultra-compact LC-VCO using a stacked-spiral inductor

IEICE Electronics Express

Toshihiko Ito¹  Kenichi Okada¹  Akira Matsuzawa¹  Rui Murakami¹ 

[1] Tokyo Institute of Technology

关键词: LC-VCO;    stacked-spiral inductor;    small area;    FoMA;   

DOI  :  10.1587/elex.8.512

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(10)Cited-By(1)This paper proposes an ultra compact LC-VCO. Due to the speed-up of CMOS digital circuits, jitter of ring oscillators is becoming a critical problem. Even though an LC-VCO has a better phase noise, a layout size of on-chip inductor is a problem as a clock generator. Thus, the proposed LC-VCO consists of a very compact stacked-spiral inductor and active components placed are beneath the inductor. The VCO is implemented by a 65-nm CMOS process, and the chip area is only 594µm2. This VCO achieves a phase noise of -93dBc/Hz@1MHz, power consumption of 0.36mW, and FOMA of 210dBc/Hz.

【 授权许可】

Unknown