view:42152 Last Update: 2023-12-17
Amir M. Sodagar, G. R. Lahiji AND Ali Azarpeyvand
Reduced-Memory Direct Digital Frequency Synthesizer Using Parabolic Initial Guess |
Based on the parabolic approximation, which was recently introduced by the authors, a new architecture for sine-output direct digital frequency synthesizers has been developed. Due to using this approximation, and also considering several memory-reduction techniques, the proposed architecture is so designed that needs only 728 bits read-only memory for mapping a 12-bit phase address to 10-bit sine amplitude. The synthesizer has also been implemented and the experimental results show its desired operation and performance. |