2 Replies Latest reply on Mar 19, 2018 2:31 AM by geon

    How to convert filter coefficients to DFB code

    shimizu.hiro-00_1679296

      Hello members

       

      I set the coefficients of the filter component (channel: A, Filter class: FIR, taps: 5) as follows.

      -0.151365399360657

      -0.25751805305481

      0.700000047683716

      -0.25751805305481

      -0.151365399360657

       

      On the other hand, the DFB code inside the filter component was described as follows.

      area data_b

      ChA_FIRST:dw 15507471

      dw 14616998

      dw 5872026

      dw 14616998

      ChA_LAST: dw 15507471

       

      [Question]

      How is the coefficient set in the filter component converted to the numerical value described in the DFB code?

      For example, why "-0.151365399360657" is converted to "15507471"?

       

      Best Regards