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

被引：7

作者：

Murakami, Rui ^{[1
]}

Ito, Toshihiko ^{[1
]}

Okada, Kenichi ^{[1
]}

Matsuzawa, Akira ^{[1
]}

机构：

[1] Tokyo Inst Technol, Meguro Ku, Tokyo 1528552, Japan

来源：

IEICE ELECTRONICS EXPRESS | 2011年 / 8卷 / 07期

关键词：

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

D O I：

10.1587/elex.8.512

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 594 mu m(2). This VCO achieves a phase noise of -93 dBc/Hz@1 MHz, power consumption of 0.36 mW, and FOMA of 210 dBc/Hz.

引用

页码：512 / 517

页数：6