Design and test of a bit parallel 2nd order IIR filter structure

  • Authors:

  • O. C. McNally;W. P. Marnane;J. V. McCanny

  • Affiliations:

  • Dept. of Electr. & Electron. Eng., Queen's Univ. of Belfast, UK;Dept. of Electr. & Electron. Eng., Queen's Univ. of Belfast, UK;Dept. of Electr. & Electron. Eng., Queen's Univ. of Belfast, UK

  • Venue:
  • ICASSP '91 Proceedings of the Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference
  • Year:
  • 1991

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Abstract

Test procedures for a pipelined bit-parallel IIR filter chip which maximally exploit its regularity are described. It is shown that small modifications to the basic architecture result in significant reductions in the number of test patterns required to test such CMOS chips. The methods used allow 100% fault coverage to be achieved using less than 1000 test vectors for a chip which has 12 bit data and coefficients.