CORDIC-Based Direct Digital Frequency Synthesizer: Comparison with a ROM-Based Architecture in FPGA Implementation

Minkyoung PARK  Kiseon KIM  Jeong-A LEE  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E83-A   No.6   pp.1282-1285
Publication Date: 2000/06/25
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Digital Signal Processing
CORDIC,  DDFS (Direct Digital Frequency Synthesizer),  sine generation,  FPGA,  

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This paper describes a CORDIC-based direct digital frequency synthesizer in comparison with a ROM-based architecture. To optimize the hardware design parameters, we perform numerical analysis of the quantization effects for ROM and CORDIC-based architectures. The hardware costs of them are estimated in FPGA, which shows that the CORDIC-based architecture becomes better than the ROM-based when the required accuracy is 9 bits or more.