So everybody is saying that DCX has the same phase response as analog filter. Well I measured it and it is simply not true - take a look at the pictures.
HP filter does seem to act somewhat "textbooky" but the LP does not, it seems to be far more linear at the crossover frequency. I've tested this in various configurations and this tendency does not depend on frequency (100Hz and 1Hz illustrated) or filter type (LR48 shown for more clarity).
Anyone got an explanation for this and perhaps a way to overcome or compensate for this strange phase behavior?
HP filter does seem to act somewhat "textbooky" but the LP does not, it seems to be far more linear at the crossover frequency. I've tested this in various configurations and this tendency does not depend on frequency (100Hz and 1Hz illustrated) or filter type (LR48 shown for more clarity).
Anyone got an explanation for this and perhaps a way to overcome or compensate for this strange phase behavior?