Mixed-Mode Third-Order Quadrature Oscillator Based on Single MCCFTA
| Autor: | Montree Kumngern, K. Khaw-Ngam, Fabian Khateb |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Physics
modified current-controlled current follower transconductance amplifier (MCCFTA) mixed-mode oscillator 020208 electrical & electronic engineering third-order quadrature oscillator Delay line oscillator 020206 networking & telecommunications Clapp oscillator 02 engineering and technology Hardware_PERFORMANCEANDRELIABILITY Variable-frequency oscillator Topology Vackář oscillator Control theory RC oscillator 0202 electrical engineering electronic engineering information engineering Hardware_INTEGRATEDCIRCUITS lcsh:Electrical engineering. Electronics. Nuclear engineering Pierce oscillator Colpitts oscillator Digitally controlled oscillator Electrical and Electronic Engineering lcsh:TK1-9971 |
| Zdroj: | Radioengineering. 2017 vol. 26, č. 2, s. 522-535. ISSN 1210-2512 Radioengineering, Vol 26, Iss 2, Pp 522-535 (2017) |
| Popis: | This paper presents a new mixed-mode third-order 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 component which is highly suitable for integrated circuit implementation. The condition and frequency of oscillations can be controlled orthogonally and electronically by adjusting the bias currents of the active device. The circuit provides four quadrature current outputs and two quadrature voltage outputs into one single topology, which can be classified as mixed-mode oscillator. In addition, four quadrature current output terminals possess high-impedance level which can be directly connected to next stage without additional buffer circuits. The performance of the proposed structure has been verified through PSPICE simulators using 0.25 µm CMOS process from TSMC and experimental results are also investigated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|