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

• Murakami Rui

  Tokyo Institute of Technology

• Ito Toshihiko

  Tokyo Institute of Technology

• Okada Kenichi

  Tokyo Institute of Technology

• Matsuzawa Akira

  Tokyo Institute of Technology

抄録

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.

収録刊行物

• IEICE Electronics Express

  IEICE Electronics Express 8 (7), 512-517, 2011

  一般社団法人 電子情報通信学会

キーワード

• LC-VCO
• stacked-spiral inductor
• small area
• FoMA

詳細情報

• CRID: 1390282680189678592
• NII論文ID: 130000654726
• DOI: 10.1587/elex.8.512
• ISSN: 13492543
• Web Site: http://www.jstage.jst.go.jp/article/elex/8/7/8_7_512/_pdf
• 本文言語コード: en
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