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ADAU1452 FIR maximum filter size

Question asked by DMR on Mar 24, 2014
Latest reply on Mar 24, 2014 by DMR

I am evaluating the ADAU1452 SigmaDSP on the EVAL-ADAU1452MINIZ EVM board. In the user manual it states that the ADAU1452 can perform 24,000 filter taps per sample at a sample rate of 48kHz. In the SigmaStudio software, under the help topic "FIR", it states that the maximum number of coefficients in a FIR filter implementation is 800. I would like to experiment with a 2048-tap FIR filter. Will I be able to implement a 2048-tap filter with SigmaStudio on this EVM? When I import the 2048 coefficients into the FIR filter block the software seemed to accept them, but I am not sure they are being used.