Digital Signal Processing Reference
In-Depth Information
LPF155F0.4
0
250
-20
200
-40
150
-60
100
-80
50
-100
0
-120
-50
-140
-160
-100
0 .2 .4 .6 .81
Normalised Frequency,
F
0
50
100
150
Index,
k
Normalized Frequency,
F
1.2
0.2
0.16
1
0.12
0.8
0.08
0.04
0.6
0
0.4
-0.04
-0.08
0.2
-0.12
0
-0.16
-0.2
-0.2
0
50
100
150
0
0.08
0.16
0.24
0.32
0.4
Index,
k
Normalized Frequency,
F
Normalised Frequency,
F
Filter Coefficients
h
1
-
h
8
h
9
-
h
16
h
17
-
h
24
h
25
-
h
32
h
33
-
h
40
h
41
-
h
48
h
49
-
h
56
h
57
-
h
64
h
65
-
h
72
h
73
-
h
78
0.0008
-0.0058
0.0243
-0.054
0
0.4677
-1.868
4.2531
-5.9656
0
0.0015
-0.0044
0
0.0627
-0.3132
0.8521
-1.284
0
6.6678
-37.9822
0
0.0052
-0.0339
0.1177
-0.2209
0
1.4263
-5.1951
12.1129
-31.5742
-0.0022
0.0101
-0.0246
0
0.2515
-1.0747
2.5608
-3.5496
0
47.6582
-0.0017
0
0.029
-0.1573
0.4624
-0.7441
0
3.9265
-15.5637
154.8045
0.002
-0.0145
0.0549
-0.112
0
0.8323
-3.1436
7.0345
-11.0536
204.8
0.004
-0.0107
0
0.1288
-0.5937
1.5041
-2.15
0
12.8718
0
0.0127
-0.075
0.2393
-0.4146
0
2.3778
-8.6656
24.6963
Performance Features
Parameter
Symbol
Value
Units
Frequency Response
0.3932x
f
N
-3 dB Cut-off Frequency
F
-3dB
[f
N
]
Maximum Attenuation
A
−
104.0
dB
0.041x
f
N
Transition Width
∆
F
[f
N
]
1.6x10
−5
Pass-Band Ripple
R
dB
Step Response
Rise/Fall Time
τ
R
2.32x
∆
T
[
∆
T]
% Overshoot
Q
9.5
%
τ
S
Settling Time
20x
∆
T
[
∆
T]
