Title :
Quadrature oscillator solution suitable with arbitrary and electronically adjustable phase shift
Author :
Sotner, Roman ; Jerabek, Jan ; Petrzela, Jiri ; Prokop, Roman ; Vrba, Kamil ; Kartci, Aslihan ; Dostal, Tomas
Author_Institution :
Fac. of Electr. Eng. & Commun., Brno Univ. of Technol., Brno, Czech Republic
Abstract :
This paper discusses new quadrature oscillator consisting of two all-pass sections and inverting amplifier that is capable of generating two signals with arbitrary phase shift between them. Constrains and limits of this simple idea are discussed. Verifications of theoretical expectations were provided by Spice simulations based on active devices with TSMC 0.18 μm NMOS and PMOS technological models.
Keywords :
MOS integrated circuits; harmonic oscillators (circuits); operational amplifiers; Spice simulations; TSMC NMOS technological model; TSMC PMOS technological model; active devices; all-pass sections; arbitrary adjustable phase shift; electronically adjustable phase shift; inverting amplifier; quadrature oscillator solution; size 0.18 mum; Analog integrated circuits; Capacitors; Gain control; Oscillators; Semiconductor device modeling; Signal processing; Tuning; Arbitrary phase shift; all-pass section; electronic control; multiphase oscillator; operational transconductance amplifier; quadrature oscillator;
Conference_Titel :
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location :
Lisbon
DOI :
10.1109/ISCAS.2015.7169332
