2015 IEEE 16th Annual Wireless and Microwave Technology Conference (WAMICON) 2015
DOI: 10.1109/wamicon.2015.7120358
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A low-power and high-SFDR Direct Digital Frequency Synthesizer based on adaptive recoding CORDIC

Abstract: Direct Digital Frequency Synthesizer (DDS) plays an important role in communication systems. In this paper, we propose a novel DDS architecture. Compared with the conventional lookup table (LUT) based DDS, the proposed one adopts the coordinate rotation digital computer (CORDIC) algorithm to accomplish phase-to-amplitude conversion. Due to the poor accuracy of the conventional CORDIC, an adaptive recoding CORDIC is proposed. To verify the correctness and evaluate the performance, the proposed DDS is validated … Show more

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