National Changhua University of Education Institutional Repository : Item 987654321/10888
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題名: A Low-Power Efficient Direct Digital Frequency Synthesizer Based on New Two-Level Lookup Table
作者: Yi, S.-C.;Lee, K.-T.;Chen, Jin-Jia;Lin, C.-H.
貢獻者: 電機工程學系
關鍵詞: DDFS;Low power;VLSI;Frequency;Synthesizer
日期: 2006-05
上傳時間: 2012-06-04T09:11:24Z
出版者: IEEE
摘要: This workpresents a low power direct digitalfrequency synthesizer (DDFS) by using a new two-level lookup table algorithm. The algorithm uses trigonometric double angle formula to divide ROM lookup table into two parts. The ROM size of the proposed architecture is 25% less than
that of conventional two-level table. The hardware complexity of the new DDFS architecture compared to the traditional two-level table DDFS can be omitted one multiplier. A synthesized 0.35-pm DDFS with a SFDR of - 80dB, runs up to 100MHz and consumes 81-mW at 3.0v.
The power efficiency is 0.81-m W/MHz, which represents an enhancement of more than 38% compared to the conventional DDFS.
關聯: 2006 IEEE Canadian Conference on Electrical and Computer Engineering, Ottawa, Canada, May 7-10, 2006: 68-71
顯示於類別:[電機工程學系] 會議論文

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