7.14.17. Dynamic Decimating FIR Filter
The FIR filter length is 2 x (Dmax / Dmin) x N + 1 where Dmax and Dmin are the maximum and minimum decimation ratios and N is the number of (1 sided) symmetric coefficients at Dmin.
All channels must have the same decimation ratio. The product of the number of channels and the minimum decimation ratio must be 4 or more. The design limits the wire count to 1 and:
number of channels x sample rate = clock rate.
The model file is demo_dyndeci.mdl