A 2.4GHz Quadrature Output Frequency Synthesizer

作     者：衣晓峰 方晗 杨雨佳 洪志良 Yi Xiaofeng;Fang Han;Yang Yujia;Hong Zhiliang

作者机构：复旦大学专用集成电路与系统国家重点实验室上海200433 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2005年第26卷第10期

页      码：1910-1915页

摘      要：A design and implementation for a 2.4GHz quadrature output frequency synthesizer intended for bluetooth in 0. 35μm CMOS technology are presented. A differentially controlled quadrature voltage-controlled oscillator （QVCO） is employed to generate quadrature （I/Q） signals. A second-order loop filter, with a unit gain transconductance amplifier having the performance of a third-order loop filter,is exploited for low cost. The measured spot phase noise is -106.15dBc/Hz@ 1MHz. Close-in phase noise is less than -70dBc/Hz. The synthesizer consumes 13.5mA under a 3.3V voltage supply. The core size is 1.3mm×0. 8mm.

主 题 词：frequency synthesizer phase locked loop quadrature VCO phase noise bluetooth 

学科分类：080902[080902] 0809[工学-计算机类] 08[工学] 

核心收录：

D　O　I：10.3969/j.issn.1674-4926.2005.10.009

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