A 0.3-V power supply 2.4-GHz-band Class-C VCO IC with amplitude feedback loop in 65-nm CMOS

被引：6

作者：

Yang, Xin ^{[1
]}

Uchida, Yorikatsu ^{[1
]}

Xu, Kangyang ^{[1
]}

Wang, Wei ^{[1
]}

Yoshimasu, Toshihiko ^{[1
]}

机构：

[1] Waseda Univ, Grad Sch Informat Prod & Syst, Kitakyushu, Fukuoka 8080135, Japan

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2014年 / 81卷 / 03期

基金：

日本学术振兴会;

关键词：

Class-C; LC-VCO; Low voltage; 65-nm CMOS;

D O I：

10.1007/s10470-014-0351-8

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A Class-C voltage-control-oscillator (VCO) IC with an amplitude feedback loop for ultra-low-voltage application is proposed. The Class-C VCO consists of an LC-VCO circuit and an amplitude feedback loop to shift LC-VCO bias condition from initial Class-AB start-up to steady Class-C low current oscillation. The amplitude feedback loop is formed by a detector and a comparator with low voltage supply. The LC-VCO IC has been designed, fabricated and fully evaluated using 65-nm CMOS technology. The fabricated Class-C VCO IC exhibits a measured phase noise of 111 dBc/Hz at 1 MHz offset from the 2.43 GHz carrier frequency at a supply voltage of only 0.3 V.

引用

页码：583 / 591

页数：9

共 20 条

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