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Quadrature Oscillator (TLV2472)

2016-08-08 02:35  
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This article describes the Quadrature Oscillator (TLV2472). The content is very simple, very helpful. Components in this article can help you understand better understanding of this article. For example, in this article, you can go to find and buy these components:TLV2472.

Quadrature oscillator generate two sine-wave signal, but one signal is shifted 90 degree from the other signal. One output that lead the other called cosine signal, and the other is called sine. Here is the schematic diagram of the circuit:

quadrature sinewave oscillator circuit schematic

This circuit is another type of pahase shift oscillator, with three phase shifter sections. Each section is configured to produce 90 degree pahase shift. With R1C1 = R2C2 =R3C3, the frequency f would be equal to 1/2[pi]RC.? When tested, this circuit produces 1.65 kH? rather than the calculated 1.59 kHz, as the components value might variate within their tolerance.

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