Volume : IV, Issue : VII, July - 2015

FPGA Implementation of Direct Digital Frequency Synthesizer With CORDIC Algorithm

Nita Patil, Prof. Mrs. J. H. Patil

Abstract :

The modern communication systems and software radio based applications demands fully digital receivers, consisting of only an antenna and a fully programmable circuit with digitalmodulators and demodulators. A basic communication system’s transmitter modulates the amplitude,phase or frequency proportional to the signal being transmitted. An efficient solution (that doesn’trequire large tables/memory) for realizing universal modulator is CORDIC (CO-ordinate RotationDigital Computer) algorithm. The CORDIC algorithm is used in the rotation mode, to convert thecoordinates from polar mode to rectangular mode. The radius vector(r) and angle (θ) of a CORDICprocessor can be programmed to generate the ASK, PSK and FSK signals. Modelsim simulator toolfrom mentor graphics will be used for functional simulation and verification of the modulator. TheXilinx synthesis Tools (XST) will be used to synthesize the complete modulator on Xilinx Spartan 3Efamily FPGA (XC3S500E). Xilinx placement & routing tools will be used for backed, designoptimization and I/O routing.

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Article: Download PDF    DOI : https://www.doi.org/10.36106/gjra  

Cite This Article:

Nita Patil, Prof.Mrs. J. H. Patil Fpga Implementation of Direct Digital Frequency Synthesizer with Cordic Algorithm Global Journal For Research Analysis, Vol: 4, Issue: 7 July 2015


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