基于单个CDCTA的低压电控调谐电流模式多相位正弦振荡器的设计

doi:10.11959/j.issn.1000-436x.2015133

通信学报 ›› 2015, Vol. 36 ›› Issue (8): 8-12.doi: 10.11959/j.issn.1000-436x.2015133

基于单个CDCTA的低压电控调谐电流模式多相位正弦振荡器的设计

王春华,蔺海荣,李毅,金杰,夏赞明

湖南大学信息科学与工程学院，湖南长沙 410082

出版日期:2015-08-25 发布日期:2015-08-25
基金资助:
国家自然科学基金资助项目;湖南大学重点实验室基金资助项目;湖南省教育厅科技基金资助项目;长沙航空学院基金资助项目

Design of low-voltage electronically tunable current-mode multiphase sinusoidal oscillator based on single CDCTA

Chun-hua WANG,Hai-rong LIN,Yi LI,Jie JIN,Zan-ming XIA

School of Computer Science and Electronic Engineering,Hunan University,Changsha 410082,China

Online:2015-08-25 Published:2015-08-25
Supported by:
The National Natural Science Foundation of China;The Open Fund Project of Key Laboratory in Hunan Universitis;Scientific Research Fund of Hunan Provincial Education Department;Changsha Aeronautical Vocational and Technical College

摘要/Abstract

摘要：

提出了一种全新的电流模式多相位正弦振荡器电路。该电路仅使用一个电流差分级联跨导放大器(CDCTA)和接地无源元件，能产生n(n为奇或偶)个等相位差的电流信号，电路结构简单、工作电压低、输出阻抗高、振荡频率高，而且振荡条件和振荡频率独立可调。计算机CADENCE软件仿真和流片测试结果验证了理论分析的正确性。

关键词: 电流模式电路, 电流差分级联跨导放大器, 多相正弦振荡器, 模拟集成电路

Abstract:

A novel current-mode multiphase sinusoidal oscillator circuit was proposed.The realized circuit using single current differencing cascaded transconductance amplifier(CDCTA)and only grounded passive elements could yield n(n being odd or even)current-output signals equally spaced in phase.It enjoyed the characteristics of simple circuit structure,low-voltage,high-output impedance,high-frequency and independently electronic adjustable of oscillation condition and oscillation frequency.CADENCE simulation and experimental results have been included to verify the theoretical analysis.

Key words: current-mode circuit, CDCTA, multiphase sinusoidal oscillator, analog integrated circuit

王春华,蔺海荣,李毅,金杰,夏赞明. 基于单个CDCTA的低压电控调谐电流模式多相位正弦振荡器的设计[J]. 通信学报, 2015, 36(8): 8-12.

Chun-hua WANG,Hai-rong LIN,Yi LI,Jie JIN,Zan-ming XIA. Design of low-voltage electronically tunable current-mode multiphase sinusoidal oscillator based on single CDCTA[J]. Journal on Communications, 2015, 36(8): 8-12.

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参考文献 8

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[5]	KLAHAN K , TANGSRIRAT W , SURAKAMPONTORN W . Realization of multiphase sinusoidal oscillator using CDBAs[A]. Circuits and Systems,Proceedings,The 2004 IEEE Asia-Pacific Conference[C]. 2004. 725-728.
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[7]	李永安 . 基于 MO-CDTA 的电控调谐多功能电流模式二阶滤波器/振荡器[J]. 微电子学, 2009,39(5): 670-672. LI Y A . Electronically tunable multifunctional current-mode filter/oscillator using MO-CDTA[J]. Microelectronics, 2009,39(5): 670-672.
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CMOS晶体管	W(μm)/L(μm)
M1～M19,M24～M39,M44～M55	24/1
M20～M21,M40～M41	1/1
M22～M23,M42～M43	60/1
M56～M57	36/0.6
M58～M75	81/0.6

基于单个CDCTA的低压电控调谐电流模式多相位正弦振荡器的设计

Design of low-voltage electronically tunable current-mode multiphase sinusoidal oscillator based on single CDCTA

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