Diseño de un sintetizador digital directo de frecuencia controlado con Arduino nano para un radiorreceptor definido por software.

Abstract

In this paper we present the design of a frequency synthesizer based on Direct Digital Synthesis technology. For this purpose we analyzed general aspects of the different methods of frequency synthesis, deepening the theory of Digital Direct Synthesis (DDS). The selection of the most suitable integrated circuits to satisfy the design requirements was made and the Arduino Nano V3 was chosen for use in the control section. An application was designed on the Visual Studio platform to allow the user to control device frequency changes. Several laboratory measurements were performed that demonstrated the accuracy and quality of the signal generated. The work is exploratory and descriptive, because it pretends to explore the characteristics and evolution of the DDS of frequencies. It is descriptive, since it allow s to analyze, design and evaluate the different technologies that apply this method in the generation of signals with stable frequencies. It is of the Empirical-Analytical paradigm with a Quantitative approach because it uses mathematical calculations for the electronic design of the different functional blocks that make up the device for the DDS of frequencies. Y is Experimental, because the study variables are altered, to finally proceed with the respective analysis .