Multiple trigonometric approximation of sine-amplitude with small ROM size for direct digital frequency synthesizers

Yong Sin Kim, Soo Hwan Kim, Kwang Hyun Baek, Suki Kim, Sung Mo Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A ROM size reduction technique based on a new sine-amplitude approximation with small ROM size for direct digital frequency synthesizers is presented. With use of the proposed multiple trigonometric approximation for 12-bit phase to 10-bit amplitude mapping, the number of ROM output bits and ROM size are reduced by 5 and 44.45%, respectively, compared to the quarter sine wave technique, with comparable spectral purity. The proposed approach is also applied to a ROM segmentation method for further ROM size reduction, which has a compression ratio of 55:1.

Original languageEnglish
Title of host publicationProceedings - 16th International Conference on VLSI Design, VLSI 2003 - concurrently with the 2nd International Conference on Embedded Systems Design
PublisherIEEE Computer Society
Pages261-265
Number of pages5
ISBN (Electronic)0769518680
DOIs
Publication statusPublished - 2003
Event16th International Conference on VLSI Design, VLSI 2003 - concurrently with the 2nd International Conference on Embedded Systems Design - New Delhi, India
Duration: 2003 Jan 42003 Jan 8

Publication series

NameProceedings of the IEEE International Conference on VLSI Design
Volume2003-January
ISSN (Print)1063-9667

Other

Other16th International Conference on VLSI Design, VLSI 2003 - concurrently with the 2nd International Conference on Embedded Systems Design
Country/TerritoryIndia
CityNew Delhi
Period03/1/403/1/8

Keywords

  • Communication switching
  • Frequency synthesizers
  • Partitioning algorithms
  • Power dissipation
  • Propagation delay
  • Read only memory
  • Silicon compounds
  • Table lookup
  • Very large scale integration

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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