Evaluating Digital Sine wave Generator Using Analog Metrics
HoseinAli Jafari Abeshoori, Seyed Javad Azhari
TL;DR
This paper evaluates digital sine wave generators by comparing their performance to analog metrics like THD and error, using theoretical formulations and simulations to analyze systematic parameters.
Contribution
It introduces a method to relate digital and analog metrics for DDS, with theoretical error formulations and simulation-based analysis.
Findings
Error formulas for DDS are derived mathematically.
Simulation results show how parameters affect THD and error.
The approach bridges digital and analog performance evaluation.
Abstract
This work aims to relate comparison metrics for both Direct Digital Synthesizers (DDS) and their analog counterparts. The proposed metrics are Total Harmonic Distortion (THD) and maximum absolute error. Error is theoretically formulated into closed forms for known systematic parameters of DDS, sample rate, and bit counts. By the use of Matlab scripting, the system model is simulated for a wide range of parameters sweep.
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Taxonomy
TopicsAnalog and Mixed-Signal Circuit Design · Digital Filter Design and Implementation · Neural Networks and Applications