Hi all:
I want to implemnt the filter spec below using CIC + CICCOMP filter
FS=5MHz, fp=9k, fst=10k, ap=0.1, ast=100, decimator=100
I am using a Differential delay=50 and Number of sections=5 CIC filter
and cascading a ciccomp filter which provide an extra 2 decimator. but
the cic compensate filter
fs=100k, fp=9k, fst=10k,ap=0.1,ast=100 D=2
will take 404 taps to implement using equiripple method, the taps is
too long for input data block which is only 200 samples a frame, so
before next frame is coming, the filter is still full of unprocessed
last frame data, this will cause the output of nextframe filter in-
accurate.
any suggestions?
savor
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