Free Simple Circuit Diagram
Precision oscillator can be built using quartz crystal, but with proper component selection, you can also build one with RC (resistor and capacitor) circuit. Not only to build a tone/frequency decoder, 567 IC can be used to build such oscillator as well. The good news is that you need only few components, and a VCO terminal to fine tune the […]
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Sometimes, a precise two different frequencies are needed in synchronized circuit design, one with certain frequency and another with exactly double frequency. Usually we build two clock signals with frequency with 1:2 frequencies by feeding an oscillator into a binary counter or T (toggle) flip-flop, so it would be need more components. Using 567 IC, we can build this function […]
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This is a schematic diagram of a micropower voltage-controlled oscillator circuit. This circuit can generate square and triangle wave outputs and only need 50µA from a single 5 V supply. This circuit consist of combination of an inexpensive quad CMOS switch and two OP90s. Here is schematic diagram of the the circuit : The integrator in this circuit is A1. […]
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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: This circuit uses a 567 tone decoder circuit, which […]
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