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NI 9227 Operating Instructions and Specifications
Figure 7.
Typical Passband Flatness for the NI 9227
Stopband
The filter significantly attenuates all signals above the stopband
frequency. The primary goal of the filter is to prevent aliasing.
Therefore, the stopband frequency scales precisely with the data rate.
The stopband rejection is the minimum amount of attenuation applied
by the filter to all signals with frequencies within the stopband.
Freq
u
ency/D
a
t
a
R
a
te (Hz)
0.5
0.4
0.025
0.000
–0.025
–0.050
0.
3
0.2
0.1
0
G
a
in (dB)
