| A ROM-Less Direct Digital Synthesizer Using Piecewise Linear Approximation | |
|---|---|
| 學年 | 91 |
| 學期 | 1 |
| 發表日期 | 2002-08-12 |
| 作品名稱 | A ROM-Less Direct Digital Synthesizer Using Piecewise Linear Approximation |
| 作品名稱（其他語言） | |
| 著者 | Chen, Hsin-Chuan; Chiang, Jen-Shiun; Kuo, Chung-Yu |
| 作品所屬單位 | 淡江大學電機工程學系 |
| 出版者 | |
| 會議名稱 | 2002年超大型積體電路設計暨計算機輔助設計技術研討會=2002 VLSI Design/CAD Symposium |
| 會議地點 | 臺東市, 臺灣 |
| 摘要 | To achieve a low approximation error and to simplify the circuit implementation are two important issues in the design of the direct digital frequency synthesizers (DDS) using approximation approaches . In this paper, we propose a new hardware scheme using piecewise linear approximation method to realize a sine-output DDS, which only has about a 0.005 maximum approximation error. Neither ROM lookup table existed in the conventional DDS nor small correcting data ROM used for the DDS with initial guess/correction methods is required. Furthermore, by modifying the behavior of the conventional phase accumulator, the proposed DDS also provides the flexibility for tuning frequency and a reduction of phase jitter. |
| 關鍵字 | 頻率合成器;分段式線性趨近;相位顫動;Frequency Synthesizer;Piecewise Linear Approximation;Phase Jitter |
| 語言 | en |
| 收錄於 | |
| 會議性質 | 國內 |
| 校內研討會地點 | |
| 研討會時間 | 20020812~20020815 |
| 通訊作者 | |
| 國別 | TWN |
| 公開徵稿 | Y |
| 出版型式 | 紙本 |
| 出處 | 2002年超大型積體電路設計暨計算機輔助設計技術研討會論文集=Proceedings of of the 2002 VLSI Design/CAD Symposium，頁496-499 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/95892 ) |
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