App-35
IM 701210-06E
Appendix
App
Characteristics Examples
• IIR (Butterworth) Low-pass
-80
-60
-40
-20
0
0 f
0.1 f
0.2 f
0.3 f
0.4 f
0.5 f
IIR (Butterworth) Low-pass Frequency Characteristics
0.20%
2%
5%
10%
15%
20%
25%
30%
dB
0
50
100
150
200
250
300
350
s/T
s
IIR (Butterworth) Low-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) Low-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)