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/Ts
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)