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Rev. 1.0
0006302011
SSM23C User Manual
+86-400-820-9661
5.3.1 Frequency: Notch Filter Center Frequency
This defines the center frequency - the frequency where the most gain reduction occurs. For now,
finding the center frequency is a bit of a guessing game and different frequencies can be tried until
the system resonance is eliminated.
5.3.2 BandWidth: Notch Filter Frequency Bandwidth
This defines the frequency span where the signal is reduced by at least 3dB. For example if the
center frequency is set to 400Hz and the bandwidth to 200 the signal will be reduced by 3dB
starting at 300hz. It will have the greatest reduction at 400Hz, and then will be greater than 3dB
above 500Hz. When setting the notch filter a chart is displayed that provides an indication of the
filtering that will be accomplished.
