A fast-hopping 3-band CMOS frequency synthesizer for MB-OFDM UWB system

被引：1

作者：

Zheng Yongzheng ^{[1
]}

Xia Lingli ^{[1
]}

Li Weinan ^{[1
]}

Huang Yumei ^{[1
]}

Hong Zhiliang ^{[1
]}

机构：

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

来源：

JOURNAL OF SEMICONDUCTORS | 2009年 / 30卷 / 09期

基金：

中国国家自然科学基金;

关键词：

frequency synthesizer; phase-locked loop; ultra-wideband; CMOS;

D O I：

10.1088/1674-4926/30/9/095006

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A fast-hopping 3-band (mode 1) multi-band orthogonal frequency division multiplexing ultra-wideband frequency synthesizer is presented. This synthesizer uses two phase-locked loops for generating steady frequencies and one quadrature single-sideband mixer for frequency shifting and quadrature frequency generation. The generated carriers can hop among 3432 MHz, 3960 MHz, and 4488 MHz. Implemented in a 0.13 mu m CMOS process, this fully integrated synthesizer consumes 27 mA current from a 1.2 V supply. Measurement shows that the out-of-band spurious tones are below -50 dBc, while the in-band spurious tones are below -34 dBc. The measured hopping time is below 2 ns. The core die area is 1.0 x 1.8 mm(2).

引用

页数：7

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