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

Journal on Communications ›› 2015, Vol. 36 ›› Issue (8): 8-12.doi: 10.11959/j.issn.1000-436x.2015133

• Academic paper • Previous Articles Next Articles

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

Abstract

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

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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References 8

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

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