Design and Implementation of a Digital Quadrature Amplitude Modulator QAM-64 using FPGA

Abstract: In this paper, we propose the design and implementation mechanism for different digital modulators such as SynthesizerFrequencyDigitalDirectQuadraturebased on the use ofodulatorsm64-QAMAmplitudeQuadrature (QDDFS) using Cyclone II EP2C20F484C7 FPGA from ALTERA placed on education and development board DE-1 with the following parameters: .=50MHzCLK: FClock frequency- -Modulation type of signal is : QAM-64 .
-Frequency range : (0.011 Hz…10 MHz) .
-Frequency Resolution : (0.011 Hz) .
- Signal amplitude(5V) .
- Data frequency : 1KHz .
- Digital designs allow the slides to modify and design development for results and better through reprogramming, depending on the user's desire.

Keywords: Digital Modulator ,QAM , QAM-46 , DDFS, QDDFS , FPGA.