Digital Signal Processing Reference
In-Depth Information
LPF55F0.4
0
250
-20
200
-40
150
-60
-80
100
-100
50
-120
0
-140
-160
-50
0
0.2
0.4
0.6
0.8
1
0
20
40
Normalised Frequency,
F
Index,
k
Normalized Frequency,
F
1.2
0.25
0.2
1
0.15
0.8
0.1
0.05
0.6
0
0.4
-0.05
-0.1
0.2
-0.15
0
-0.2
-0.2
-0.25
0
20
40
0
0.06
0.12
0.18
0.24
0.3
Index,
k
Normalised Frequency,
F
Normalized Frequency,
F
Filter Coefficients
h
1
-
h
3
h
4
-
h
6
h
7
-
h
9
h
10
-
h
12
h
13
-
h
15
h
16
-
h
18
h
19
-
h
21
h
22
-
h
24
h
25
-
h
27
h
28
0.0028
-0.0228
0.098
-0.2224
0
1.9466
-7.7865
18.1533
-29.2356
204.8
0.0079
-0.0233
0
0.3318
-1.6218
4.3047
-6.3953
0
46.0558
0
0.0379
-0.2372
0.7882
-1.4064
0
8.4663
-33.126
153.4866
Performance Features
Parameter
Symbol
Value
Units
Frequency Response
0.3776x
f
N
-3 dB Cut-off Frequency
F
-3dB
[f
N
]
Maximum Attenuation
A
−
105.1
dB
0.114x
f
N
Transition Width
∆
F
[f
N
]
2.2x10
−5
Pass-Band Ripple
R
dB
Step Response
Rise/Fall Time
τ
R
2.33x
∆
T
[
∆
T]
% Overshoot
Q
8.9
%
S
Settling Time
τ
8x
∆
T
[
∆
T]
