Complexity-aware design of DA-based FIR filters

Chih Chao Chen*, Tay Jyi Lin, Chih-Wei Liu, Chein Wei Jen

*Corresponding author for this work

    Research output: Contribution to conferencePaperpeer-review

    2 Scopus citations

    Abstract

    This paper presents a novel technique to reduce the area of the hardwired lookup table (LUT) of DA-based FIR filters. It explores the optimal quantization on the real-valued LUT with optimal global scaling and error distribution, and we apply an effective error measure to estimate the quantization error on the FIR coefficients. Our approach enables designers to explicitly trade the quality for simple implementations at finer granularity than that solely by reducing the coefficient wordlengths. Moreover, in our simulations, the proposed method can save 30%-40% silicon area of conventional DA-based FIR filters under identical error constraints.

    Original languageEnglish
    Pages445-448
    Number of pages4
    DOIs
    StatePublished - 2004
    Event2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology - Tainan, Taiwan
    Duration: 6 Dec 20049 Dec 2004

    Conference

    Conference2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology
    Country/TerritoryTaiwan
    CityTainan
    Period6/12/049/12/04

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