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A Quadrature Oscillator Based on a New “Optimized DDCC” All-Pass Filter
Computor Imaging and Electronic Systems Group (CIEL), Research Unit (ICOS), Sfax, Tunisia;University of Sfax, National Engineering School of Sfax (ENIS), Sfax, Tunisia
University of Sfax, National Engineering School of Sfax (ENIS), Sfax, Tunisia;Development Group in Electronics and Communications (EleCom) Laboratory (LETI), Sfax, Tunisia
Computor Imaging and Electronic Systems Group (CIEL), Research Unit (ICOS), Sfax, Tunisia;Development Group in Electronics and Communications (EleCom) Laboratory (LETI), Sfax, Tunisia
- 1 Computor Imaging and Electronic Systems Group (CIEL), Research Unit (ICOS), Sfax, Tunisia;University of Sfax, National Engineering School of Sfax (ENIS), Sfax, Tunisia
- 2 University of Sfax, National Engineering School of Sfax (ENIS), Sfax, Tunisia;Development Group in Electronics and Communications (EleCom) Laboratory (LETI), Sfax, Tunisia
- 3 Computor Imaging and Electronic Systems Group (CIEL), Research Unit (ICOS), Sfax, Tunisia;Development Group in Electronics and Communications (EleCom) Laboratory (LETI), Sfax, Tunisia
Circuits and Systems·Volume 04 (2013)·Pages 498–503·Published 26 December 2013·DOI10.4236/cs.2013.48065
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Abstract
In this paper, a new voltage-mode (VM) , all-pass filter utilizing two second-generation current conveyors and t ow differential difference current conveyors (DDCCs) is proposed. This filter uses a number of passive elements grounded capacitor. This structure of filter is used to realize a quadrature oscillator. The proposed circuits employ tow optimized differential difference translinear second generation current conveyers (DDCCII). These structures are simulated using the spice simulation in the ADS software and CMOS 0.18 μm process of TSMC technology to confirm the theory. The pole frequency can be tuned in the range of [11.6 - 39.6 MHz] by a simple variation of a DC current.
KeywordsProposed Current Controlled OscillatorsCMOS 0.18 μm Process of TSMCCurrent ConveyorDifferential Difference Current Conveyors
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