Current and Voltage Mode Multiphase Sinusoidal Oscillators Using CBTAs
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Date
2013-04
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Advisor
Referee
Mark
Journal Title
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Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
Current-mode (CM) and voltage-mode (VM) multiphase sinusoidal oscillator (MSO) structures using current backward transconductance amplifier (CBTA) are proposed. The proposed oscillators can generate n current or voltage signals (n being even or odd) equally spaced in phase. n+1 CBTAs, n grounded capacitors and a grounded resistor are used for nth-state oscillator. The oscillation frequency can be independently controlled through transconductance (gm) of the CBTAs which are adjustable via their bias currents. The effects caused by the non-ideality of the CBTA on the oscillation frequency and condition have been analyzed. The performance of the proposed circuits is demonstrated on third-stage and fifth-stage MSOs by using PSPICE simulations based on the 0.25 µm TSMC level-7 CMOS technology parameters.
Description
Citation
Radioengineering. 2013, vol. 22, č. 1, s. 24-33. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2013/13_01_0024_0033.pdf
http://www.radioeng.cz/fulltexts/2013/13_01_0024_0033.pdf
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Peer-reviewed
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Published version
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en