A LOW POWER, LOW PHASE NOISE WIDE TUNING LC VCO WITH VARACTOR BANK

被引：0

作者：

Singh, Shephali ^{[1
]}

Gurjar, R. C. ^{[1
]}

机构：

[1] SGSITS, Elect & Instrumentat Dept, Microelect & VLSI Engn, Indore, Madhya Pradesh, India

来源：

2017 INTERNATIONAL CONFERENCE ON RECENT INNOVATIONS IN SIGNAL PROCESSING AND EMBEDDED SYSTEMS (RISE) | 2017年

关键词：

LC VCO; quality factor; varactor bank; negative resistance; frequency tuning; VCO gain; phase noise; power;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

Thispaper presentedthe LC VCO design with varactor bank based on the selection of passive elements. A negative CMOS cross coupled pair is added to reduce losses and improves quality factor. This configuration is selected due to ease of oscillation and a relatively straight forward design approach. Tuning range is achieved from 9 band MOS varactor bank having low VCO gain. The PMOS varactors operating in inversion and depletion region which allow large tuning and less parasitic resistance. LC VCO has been implemented using SCL 0.18 mu m CMOS technology. The proposed design achieves a wide tuning frequency from 4.3 GHz - 6.8 GHz and a phase noise of - 127.5dBc/Hz @ 1 MHz. The tuning range of proposed circuit is 45% andthe power consumption is 216 uW using 1.5 V supply voltage.

引用

页码：413 / 417

页数：5

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