单片CDCTA-C低功耗电控调谐双模式三阶正交振荡器的设计

doi:10.3969/j.issn.0372-2112.2017.03.014

电子学报 ›› 2017, Vol. 45 ›› Issue (3): 599-604.DOI: 10.3969/j.issn.0372-2112.2017.03.014

单片CDCTA-C低功耗电控调谐双模式三阶正交振荡器的设计

雷才洪

湖北理工学院机电工程学院, 湖北黄石 435003

收稿日期:2015-08-18 修回日期:2015-10-26 出版日期:2017-03-25
- 作者简介:
- 雷才洪 男,1963年生于湖北黄石.现为湖北理工学院机电工程学院副教授.主要研究方向为机械电子和信号处理.E-mai:leicaihong2015@126.com
- 基金资助:
- 湖北省教育厅科研资助项目 (No.2014681）

Design of Low-Power Electronically Controllable Dual-Mode Third-Order Quadrature Oscillator Using Single CDCTA-C

LEI Cai-hong

School of Mechanic and Electric Engineering, Hubei Polytechinc University, Huangshi, Hubei 435003, China

Received:2015-08-18 Revised:2015-10-26 Online:2017-03-25 Published:2017-03-25
- Supported by:
- Project Supported by Scientific Research Program of Education Department of Hubei Province (No.2014681)

摘要/Abstract

摘要：

针对振荡器功耗大和振荡频率低的问题，提出了一种基于电流差分级联跨导放大器的三阶正交振荡电路.该电路仅使用一个电流差分级联跨导放大器和三个接地无源电容，可以同时产生两组等幅正交电流信号和一组等幅正交电压信号.电路结构简单，功耗低至1.8mW，最大灵敏度绝对值仅0.5，振荡频率可达10MHz数量级，而且振荡条件和震荡频率可相互独立地电控调谐.计算机模拟和流片芯片测试结果验证了理论分析的正确性.

关键词: 集成电路, 低功耗, 振荡器, 电流差分级联跨导放大器, 振荡频率

Abstract:

In order to solve problems of high power consumption and low oscillation frequency in oscillator,this work presents a third-order quadrature oscillator circuit employing CDCTA (Current Differencing Cascaded Transconductance Amplifiers).The proposed structure employing only one CDCTA and three grounded passive capacitors realizes four explicit quadrature current outputs and two quadrature voltage outputs simultaneously.Meanwhile,the circuit power consumption is only 1.8mW,the maximum sensitivities value of only 0.5 and the oscillation frequency of up 10MHz magnitude.Moreover,its oscillation condition and oscillation frequency can be tuned electronically and independently.Results from computer simulation and hardware experiment validated the theoretical analysis of the circuit.

Key words: integrated circuit, low power consumption, oscillator, current differencing cascaded transconductance amplifiers (CDCTA), oscillation frequency

中图分类号:

TN453

雷才洪. 单片CDCTA-C低功耗电控调谐双模式三阶正交振荡器的设计[J]. 电子学报, 2017, 45(3): 599-604.

LEI Cai-hong . Design of Low-Power Electronically Controllable Dual-Mode Third-Order Quadrature Oscillator Using Single CDCTA-C[J]. Acta Electronica Sinica, 2017, 45(3): 599-604.

参考文献

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单片CDCTA-C低功耗电控调谐双模式三阶正交振荡器的设计

Design of Low-Power Electronically Controllable Dual-Mode Third-Order Quadrature Oscillator Using Single CDCTA-C

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