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Oscillator With Quadrature Output Using 567 IC

2016-08-29 00:00  
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Oscillator circuit is an electronic circuit that produce a periodic signal. The term quadrature refers to a fourth (1/4) phase shift of full wave cycle (1/4 of 360′ = 90′). In square wave oscillator, a quadrature simply means a 1/4 period phase shift. Here is a schematic diagram of such circuit:

Oscillator With Quadrature Output circuit schematic diagram

This circuit uses a 567 tone decoder circuit, which is? capable of generating an oscillation as well as detecting/decoding a frequency/tone. The component values calculation to get certain frequency operation is similar to general 567 IC based oscillator, f = 1/(1.1xR1xC1) [Circuit's schematic diagram source: Philips Semiconductors Application Notes]

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