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VLSI Implementation of Cascaded Integrator Comb Filters for DSP Applications

Author

Listed:
  • Teymourzadeh, Rozita
  • Othman, Masuri

Abstract

The recursive comb filters or Cascaded Integrator Comb filter (CIC) are commonly used as decimators for the sigma delta modulators. This paper presents the VLSI implementation, analysis and design of high speed CIC filters which are based on a low-pass filter. These filters are used in the signal decimation which has the effect on reducing the sampling rate. It is also chosen because its attractive property of both low power and low complexity since it dose not required a multiplier. Simulink toolbox available in Matlab software which is used to simulator and Verilog HDL coding help to verify the functionality of the CIC filters. Design procedures and examples are given for CIC filter with emphasis on frequency response, transfer function and register width. The implementation results show using Modified Carry Look-ahead Adder for summation and also apply pipelined filter structure enhanced high speed and make it more compatible for DSP applications.

Suggested Citation

  • Teymourzadeh, Rozita & Othman, Masuri, 2006. "VLSI Implementation of Cascaded Integrator Comb Filters for DSP Applications," MPRA Paper 41944, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:41944
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    More about this item

    Keywords

    CIC; sigma delta; Decimation; Comb; recursive; truncation; MCLA;
    All these keywords.

    JEL classification:

    • L0 - Industrial Organization - - General
    • L6 - Industrial Organization - - Industry Studies: Manufacturing
    • F14 - International Economics - - Trade - - - Empirical Studies of Trade
    • L7 - Industrial Organization - - Industry Studies: Primary Products and Construction
    • O14 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Industrialization; Manufacturing and Service Industries; Choice of Technology

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