A wideband fractional-N frequency synthesizer with novel

被引：0

作者：

Cheng, Shiwei ^{[1
]}

Zhang, Ke ^{[1
]}

Cao, Shengguo ^{[1
]}

Zhou, Xiaofang ^{[1
]}

Zhou, Dian ^{[1
]}

机构：

[1] Fudan Univ, State Key Lab ASIC & Syst, Shanghai 201203, Peoples R China

来源：

PROCEEDINGS OF THE 2ND WSEAS INTERNATIONAL CONFERENCE ON CIRCUITS, SYSTEMS, SIGNALS AND TELECOMMUNICATIONS (CISST '08): CIRCUITS, SYSTEMS, SIGNAL & COMMUNICATIONS | 2008年

关键词：

fractional-N frequency synthesizer; self-calibration; wideband VCO;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, a programmable phase-locked-loop (PLL)-based fractional-N frequency synthesizer, with the capacity of automatically adjusting the nominal frequency of voltage-controlled oscillator (VCO) is presented. The monolithic wideband VCO, with digital and analog control, is capable of operating from 1.6GHz to 2.5GHz. Analog control voltage is only varied from 0.8V to 1.2 V to improve the linearity of varactors in submicron process. The synthesizer is, designed in UMC 0. 1 8um RF process, consumes 30.8mW.

引用

页码：82 / 85

页数：4

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