Delta-sigma (ΔΣ) frequency synthesizers for wireless applications

被引:0
|
作者
Bakkaloglu, Bertan
Kiaei, Sayfe [1 ]
Chaudhuri, Bikram
机构
[1] Texas Instruments Inc, Broadband Commun Grp, Dallas, TX USA
[2] Arizona State Univ, Connect 1 Res Ctr, Tempe, AZ 85281 USA
关键词
frequency synthesizers; sigma-delta modulation; RE transmitters; frequency-to-digital converters;
D O I
10.1016/j.csi.2005.12.003
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
This paper describes the state-of-the-art design approaches to delta-sigma (Delta Sigma) frequency synthesizers for wireless transceiver applications. Various synthesizer architectures, including the integer and fractional-N synthesizers, and frequency-to-digital converters (FDC) based digital frequency synthesizers are described. Design specifications for several loop parameters such as noise shaper order in the feedback modulator, loop filter bandwidth, VCO phase noise are based on modulation accuracy and frequency resolution specifications. Advantages of digital loop filter based Delta Sigma frequency synthesizers are analyzed. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:19 / 30
页数:12
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