National Tsing Hua University Institutional Repository:Low power time-multiplexed SC speech spectrum analyzer
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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 資訊工程學系 > 會議論文  >  Low power time-multiplexed SC speech spectrum analyzer


    题名: Low power time-multiplexed SC speech spectrum analyzer
    作者: Chang,J. S.
    Tong,Y. C.
    日期: 1989
    出版者: Institute of Electrical and Electronics Engineers Inc
    关键词: Speech
    Spectrum Analyzers
    Integrated Circuits
    Electric Filters
    Semiconductor Devices
    摘要: A low-power time-multiplexed switched capacitor speech spectrum analyzer embodying several novel circuit designs is described. Expressions for errors that limit the accuracy of the running spectrum are derived. An experimental four-channel (three active and one zero-input channel) speech-spectrum analyzer has been fabricated using a 5-μm double-polysilicon CMOS process. The largest DC offset difference of the BPF (bandpass filter) section in a given chip is typically 8 mV (for five chips), representing a difference error of 0.003% for a 1-V peak signal. These measurements demonstrate that, by careful biquad design, the DC offsets between different BPF section channels within a chip and their corresponding difference errors can be made small.
    相関连結: 1989 Symposium on VLSI Circuits. Digest of Technical Papers (Cat. No.89TH0262-6)
    显示于类别:[資訊工程學系] 會議論文
    [資訊系統與應用研究所] 會議論文


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