App-37
IM 701210-06E
Appendix
App
• IIR (Butterworth) Band-pass: Pass-band Width 1%
-80
-60
-40
-20
0
IIR (Butterworth) Band-pass Frequency Characteristics Pass-band Width 1%
30%
25%
20%
15%
10%
5%
2%
0.60%
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) Band-pass Group Delay Characteristics (1) Pass-band Width 1%
0.60%
2%
0 f
0.1 f
0.2 f
0.3 f
0.4 f
0.5 f
0
10
20
30
40
50
60
70
s/T
s
IIR (Butterworth) Band-pass Group Delay Characteristics (2) Pass-band Width 1%
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)