There are the following filters per channel:
|
Filter type |
Order |
Cut-off frequency |
in addition / permanent |
|---|---|---|---|
|
R/C low-pass |
1. |
40 kHz |
permanent |
|
Analog anti-aliasing Butterworth |
4. |
20 kHz |
in addition |
|
Digital anti-aliasing filter (Tschebyscheff I) |
8. |
can be adjusted (100 Hz … 0.5*sampling rate) |
in addition (sampling rate > 500 Hz) |
Filter principle:
