Publication detail

Current and Voltage Mode Multiphase Sinusoidal Oscillators Using CBTAs

SAGBAS, M. AYTEN, U. HERENCSÁR, N. MINAEI, S.

Original Title

Current and Voltage Mode Multiphase Sinusoidal Oscillators Using CBTAs

English Title

Current and Voltage Mode Multiphase Sinusoidal Oscillators Using CBTAs

Type

journal article in Web of Science

Language

en

Original 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 um TSMC level-7 CMOS technology parameters.

English 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 um TSMC level-7 CMOS technology parameters.

Keywords

Multiphase sinusoidal oscillator, current backward transconductance amplifier (CBTA), current-mode circuits, voltage-mode circuits, active networks.

RIV year

2013

Released

01.04.2013

ISBN

1210-2512

Periodical

Radioengineering

Year of study

22

Number

1

State

CZ

Pages from

24

Pages to

33

Pages count

10

Documents

BibTex


@article{BUT101234,
  author="Mehmet {Sagbas} and Umut E. {Ayten} and Norbert {Herencsár} and Shahram {Minaei}",
  title="Current and Voltage Mode Multiphase Sinusoidal Oscillators Using CBTAs",
  annote="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 um TSMC level-7 CMOS technology parameters.",
  chapter="101234",
  number="1",
  volume="22",
  year="2013",
  month="april",
  pages="24--33",
  type="journal article in Web of Science"
}