DDS (Direct Digital Synthesis) Implementation using MATLAB Simulink and M-File

This implementation demonstrates a DDS (Direct Digital Synthesis) model built using fundamental Simulink blocks within MATLAB, designed to simulate DDS signal generation processes. The model incorporates key DDS components including phase accumulator, phase-to-amplitude converter (typically using lookup tables), and digital-to-analog conversion elements. A complementary M-file provides equivalent functionality, implementing the core DDS algorithm through mathematical operations where the phase accumulator generates increasing phase values, frequency tuning words control output frequency, and waveform synthesis occurs through trigonometric computations or pre-stored waveform tables. MATLAB enthusiasts will find this valuable for understanding both block-based and code-based approaches to digital signal synthesis, featuring practical implementation details for frequency resolution calculation, phase truncation effects, and spectral characteristics analysis.