Paper title: RESISTORLESS CURRENT-MODE QUADRATURE OSCILLATOR WITH GROUNDED CAPACITORS
Author(s): JIE JIN, PINGYUAN LIANG,
Abstract: This paper presents a new Current Differencing Transconductance Amplifiers (CDTA)-
based resistorless current-mode Quadrature Oscillator (QO). The proposed QO consist
of two CDTAs and two grounded capacitors, and it is completely resistorless, which are
suitable for monolithic integration. The QO can provide two explicit quadrature outputs
at high impedance terminals, which are convenient for cascade. The oscillation
frequency of the QO can be tuned from 46.63 MHz to 54.72 MHz by changing the
control voltage, and the phase noise of the QO is –89.81dBc/Hz at 1 MHz offset.
Moreover, all the active and passive sensitivities are low
Keywords: Current mode, Quadrature oscillator, Current differencing transconductance
amplifiers Year: 2013 | Tome: 58 | Issue: 3 | Pp.: 304-313
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