Single-resistance-controlled current-mode quadrature sinusoidal oscillator using single CCCFTA with grounded elements

Author

Srisakultiew, Somchai ; Siripruchyanun, Montree ; Jaikla, Winai

Author_Institution

Fac. of Eng. & Archit., Rajamangala Univ. of Technol. Isan, Nakhonratsima, Thailand

fYear

2013

fDate

2-4 July 2013

Firstpage

436

Lastpage

439

Abstract

This paper presents the current-mode quadrature sinusoidal oscillator employing current controlled current follower transconductance amplifier (CCCFTA). The proposed oscillator can provide two sinusoidal waveforms with high output impedance which makes the proposed oscillator can directly drive load or cascade in current mode circuit without any current buffers. The condition of oscillation (CO) and frequency of oscillation (FO) can be orthogonally controlled by mean of electronic tuning. The circuit consists of only single CCCFTA and three grounded passive elements which is ideal for implementation on an integrated circuit (IC) chip. The predicted results confirmed with Pspice simulation using a BJT technology are agreed with theoretical analysis. The total power consumption is approximately 1.28mW at ±2.5V power supply voltages.

Keywords

bipolar transistors; circuit tuning; current-mode circuits; electric current control; electric impedance; energy consumption; operational amplifiers; oscillations; oscillators; BJT technology; CO; FO; IC chip; Pspice simulation; condition of oscillation; current controlled current follower transconductance amplifier; current mode circuit; electronic tuning; frequency of oscillation; grounded passive element; impedance; integrated circuit chip; orthogonally control; power consumption; power supply voltage; single CCCFTA; single-resistance-controlled current-mode quadrature sinusoidal oscillator; sinusoidal waveform; Capacitors; Finite element analysis; Integrated circuit modeling; Oscillators; Signal processing; Transconductance; CCCFTA; Current-mode; Integrated circuit; Quadrature oscillator;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications and Signal Processing (TSP), 2013 36th International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4799-0402-0

Type

conf

DOI

10.1109/TSP.2013.6613969

Filename

6613969