Realization of Current-mode Quadrature Oscillator Based on Third Order Technique
نویسندگان
چکیده
This article presents a 3rd current-mode quadrature oscillator using current controlled current conveyor transconductance amplifier (CCCCTA) and operational transconductance amplifier (OTA) as active element as active elements. The proposed circuit is realized from a noninverting lossless integrator and an inverting second order low-pass filter. The oscillation condition and oscillation frequency can be electronically/orthogonally controlled via input bias currents. The circuit description is very simple, consisting of merely 1 CCCCTA, 1 OTA and 2 grounded capacitors. Using only grounded elements, the proposed circuit is then suitable for IC architecture. The PSPICE simulation results are depicted, and the given results agree well with the theoretical anticipation. The power consumption is approximately 5.12mW at ±2V supply voltages.
منابع مشابه
Realization of Novel Cascadable Current-Mode All-pass Sections
This paper introduces four new resistorless circuits of first-order current-mode all-pass filter (CMAPF) based on dual-X current conveyor transconductance amplifier (DXCCTA). All the four circuits use a single DXCCTA and a capacitor for their realization. The main features of the proposed CMAPFs are: use of minimum active and passive components, resistorless realization, electronically adjustab...
متن کاملCurrent differencing transconductance amplifier-based current-mode four-phase quadrature oscillator
A realization of a current-controlled current-mode four-phase quadrature oscillator based on current differencing transconductance amplifiers (CDTAs) is proposed. The proposed oscillator circuit employs only three CDTAs and two grounded capacitors, which can provide four high output impedance sinusoidal current outputs with four-phase difference. The oscillation condition and oscillation freque...
متن کاملCurrent-mode Four-phase Quadrature Oscillator
This paper presents a current-mode four-phase third-order quadrature oscillator (QO) using current differencing transconductance amplifiers (CDTA). The proposed thirdorder QO consists of three CDTAs and three grounded capacitors, and it could generate four quadrature current outputs. The oscillation condition and oscillation frequency could be electronically and independently adjusted. Moreover...
متن کاملDigitally Programmable Voltage Mode Quadrature Oscillator Using Current Conveyors
A simple technique is presented to realize a digitally programmable voltage mode quadrature oscillator using second generation current conveyors. Firstly, the current conveyors based tunable quadrature oscillator is realised. A digital block is introduced in the realized tunable quadrature oscillator so that the oscillator can be controlled digitally. The realized Digitally Programmable Quadrat...
متن کاملMixed-Mode Third-Order Quadrature Oscillator Based on Single MCCFTA
This paper presents a new mixed-mode thirdorder quadrature oscillator based on new modified current-controlled current follower transconductance amplifier (MCCFTA). The proposed circuit employs one MCCFTA as active element and three grounded capacitors as passive components which is highly suitable for integrated circuit implementation. The condition and frequency of oscillations can be control...
متن کامل