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App-36
IM 701210-06E
• IIR (Butterworth) High-pass
-80
-60
-40
-20
0
IIR (Butterworth) High-pass Frequency Characteristics
30%
25%
20%
15%
10%
5%
2%
0.20%
0 f
0.1 f
0.2 f
0.3 f
0.4 f
0.5 f
dB
0
50
100
150
200
250
300
350
s/T
s
IIR (Butterworth) High-pass Group Delay Characteristics (1)
0.20%
2%
0 f
0.1 f
0.2 f
0.3 f
0.4 f
0.5 f
0
2
4
6
8
10
12
14
s/T
s
IIR (Butterworth) High-pass Group Delay Characteristics (2)
5%
10%
15%
20% 25%
30%
0 f
0.1 f
0.2 f
0.3 f
0.4 f
0.5 f
(f: sampling frequency [Hz])
Appendix 6 DSP Channel Computation (Optional)