@inproceedings{ec8329a939d649969e7699ef4e06b1bc,
title = "A low-complexity direct digital frequency synthesizer",
abstract = "The traditional direct digital frequency synthesizer (DDFS) based on a lookup table has very high complexity. This paper describes a low complexity DDFS using smaller lookup table and with minimum additional hardware. The lookup table for sine/cosine functions is split into a coarse-precision ROM and a fine-precision ROM. Approximation of fine-precision ROM and application of shift registers are introduced to further reduce the hardware complexity. The implemental results show that the total size of ROM in this proposed DDFS architecture is only 328 bits compared with 448 bits in [1], and the spectral purity can be as good as 63.58 dBc.",
keywords = "Digital communications, Direct digital frequency synthesis (DDFS), Low-complexity, Spectral purity",
author = "Lai, \{Lin Hui\} and Li, \{Xiao Jin\} and Lai, \{Zong Sheng\}",
year = "2008",
doi = "10.1109/ICSICT.2008.4734868",
language = "英语",
isbn = "9781424421855",
series = "International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT",
pages = "1653--1656",
booktitle = "ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings",
note = "2008 9th International Conference on Solid-State and Integrated-Circuit Technology, ICSICT 2008 ; Conference date: 20-10-2008 Through 23-10-2008",
}