Software Implementation of a Simple All-Digital Frequency Synthesizer

A frequency synthesizer is an electronic circuit that generates a desired frequency from a single reference frequency or several reference frequencies. In this paper, a new simple frequency synthesizer is described, which will make it possible to generate a signal at the output whose frequency is the sum of the frequencies of the input signals divided by a constant. The results of the synthesizer simulation are presented in this paper. The synthesizer was not only simulated, but actually implemented by a microcontroller, and the measurement results are also presented. The main advantage is that the synthesizer can be created by programming in any microcontroller.