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

    3 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

    Bibliographical note

    Publisher Copyright:
    © 2003 IEEE.

    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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