A 5 GHz CMOS frequency synthesizer with novel phase-switching prescaler and high-Q LC-VCO

被引：1

作者：

曹圣国 ^{[1
]}

杨玉庆 ^{[1
]}

谈熙 ^{[1
]}

闫娜 ^{[1
]}

闵昊 ^{[1
]}

机构：

[1] State Key Laboratory of ASIC & System,Fudan University

来源：

半导体学报 | 2011年 / 32卷 / 08期

关键词：

PLL frequency synthesizer; differential voltage controlled oscillator; phase-switching prescaler; CMOS;

D O I：

暂无

中图分类号：

TN74 [频率合成技术、频率合成器];

学科分类号：

080902 ;

摘要：

A phase-locked loop（PLL） frequency synthesizer with a novel phase-switching prescaler and a high-Q LC voltage controlled oscillator（VCO） is presented.The phase-switching prescaler with a novel modulus control mechanism is much more robust on process variations.The Q factor of the inductor,I-MOS capacitors and varactors in the VCO are optimized.The proposed frequency synthesizer was fabricated by SMIC 0.13μm 1P8M MMRF CMOS technology with a chip area of 1150×2500μm;.When locking at 5 GHz,the current consumption is 15 mA from a supply voltage of 1.2 V and the measured phase noise at a 1 MHz offset is -122.45 dBc/Hz.

引用

页码：98 / 103

页数：6

共 12 条

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