Digital Sine Wave Generator Circuit

Posted on Feb 6, 2014

The digital sine wave generator (oscillator) circuit has the advantage that only few components are needed to generate signals with high amplitude constants and variable within a very wide range of frequencies. The circuit shown here generates a sinewave signal. Other signal forms can also be generated by changing the values of R1 R8. After the

Digital Sine Wave Generator Circuit
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power supply is connected to the circuit, the combination R9/C1 generates a short reset-pulse and all outputs if the 4015B are set to logic 0. The oscillator is controlled by an external clock. The frequency of the sinewave is 1/8 of the clock frequency. The highest frequency of CMOS ICs is 7 MHz, therefore a sine wave signal of 500 kHz maximum can be generated.

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