Design And Implementation Of a Digital Amplitude Modulator (AM) using FPGA
Kamal Aboutabikh, Abdul-Aziz Shokyfeh, Amer Garib · IMRJR · 2025
In this paper, we propose the design and implementation mechanism for a digital amplitude modulator based on the use of Direct Digital Frequency Synthesizer (DDFS) using Cyclone II EP2C20F484C7 FPGA from ALTERA placed on education and development board DE-1 .The proposed modulator has the following parameters: =50MHz . CLKClock frequency : F --Modulation type of signal is : AM with carrier , AM without carrier.-The modulating signal is sinusoidal of frequency 10 KHz.-Modulation factor (m= 0 to 100).-Carrier type: with carrier, without carrier.-The ROM capacity for the stored signal samples 8192X8 bits, and their values are positive within the range from 0 to 255.-Frequency range : (3 Hz…10 MHz) .-Frequency Resolution : (3 Hz) .-Signal amplitude (5V) .-Digital designs allow the slides to modify and design development for results and better through reprogramming, depending on the user's desire.