On accurate piecewise linear ROM-less direct digital frequency synthesizers

Pao Szu Wu; Valeriu Beiu

doi:10.1109/ICNNSP.2003.1281185

On accurate piecewise linear ROM-less direct digital frequency synthesizers

Pao Szu Wu, Valeriu Beiu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

This paper deals with approximation circuits for sine waves, with applications to low-power direct digital frequency synthesizers (DDFSs). The goal is to determine very accurate approximations, i.e. having very low Maximum Absolute Errors (MAE). These allow for eliminating the ROM and reducing power. They rely on simple circuitry. The paper starts by presenting previous approximation techniques focusing on ROM-less piecewise linear ones. These will be followed by several new ROM-less piecewise linear approximations, and by a very thorough comparison of the newly introduced ones with respect to those presented in the literature. The solutions presented in this paper significantly reduce the MAE with a very modest increase in circuitry (one more multiplexer), and/or 1-2 bits of extra precision.

Original language	English
Title of host publication	Proceedings of 2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03
Pages	1595-1599
Number of pages	5
DOIs	https://doi.org/10.1109/ICNNSP.2003.1281185
Publication status	Published - 2003
Externally published	Yes
Event	2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03 - Nanjing, China Duration: Dec 14 2003 → Dec 17 2003

Publication series

Name	Proceedings of 2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03
Volume	2

Other

Other	2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03
Country/Territory	China
City	Nanjing
Period	12/14/03 → 12/17/03

ASJC Scopus subject areas

Signal Processing
Computer Networks and Communications

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10.1109/ICNNSP.2003.1281185

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Wu, P. S., & Beiu, V. (2003). On accurate piecewise linear ROM-less direct digital frequency synthesizers. In Proceedings of 2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03 (pp. 1595-1599). [1281185] (Proceedings of 2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03; Vol. 2). https://doi.org/10.1109/ICNNSP.2003.1281185

On accurate piecewise linear ROM-less direct digital frequency synthesizers. / Wu, Pao Szu; Beiu, Valeriu.

Proceedings of 2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03. 2003. p. 1595-1599 1281185 (Proceedings of 2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wu, PS & Beiu, V 2003, On accurate piecewise linear ROM-less direct digital frequency synthesizers. in Proceedings of 2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03., 1281185, Proceedings of 2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03, vol. 2, pp. 1595-1599, 2003 International Conference on Neural Networks and Signal Processing, ICNNSP'03, Nanjing, China, 12/14/03. https://doi.org/10.1109/ICNNSP.2003.1281185

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On accurate piecewise linear ROM-less direct digital frequency synthesizers

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