Patent ID: 8854148
Filing Date: 2014-10-07
Classification: H03B

Abstract:
1. A programmable sinusoidal oscillator circuit, comprising: a current feedback operational amplifier (CFOA) having an x inverting input and a y non-inverting input, a z output terminal and a w output terminal; an end terminal of a first current divider connected to the x input, the first current divider including an admittance Y a split terminal of a second current divider connected to the y input, the second current divider including admittances Y a coupling admittance element Y wherein at least one admittance element of the programmable sinusoidal oscillator circuit is an active transconductance element, at least one admittance element of the programmable sinusoidal oscillator circuit is a passive element, the passive elements in the programmable sinusoidal oscillator circuit are passive capacitive elements, and oscillations generated by the programmable sinusoidal oscillator circuit appear at the w output terminal, the w output terminal having a low output impedance.