Digital Signal Processing Reference
In-Depth Information
LPF255F0.4
250
0
-20
200
-40
150
-60
100
-80
50
-100
0
-120
-50
-140
-160
-100
0
0.2
0.4
0.6
0.8
1
0
100
200
Normalised Frequency,
F
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
100
200
0
0.08
0.16
0.24
0.32
0.4
Index,
k
Normalised Frequency,
F
Normalized Frequency,
F
Performance Features
Parameter
Symbol
Value
Units
Frequency Response
-3 dB Cut-off Frequency
F
-3dB
0.3966x f
N
[f
N
]
Maximum Attenuation
A
−
103.9
dB
Transition Width
∆
F
0.0249x f
N
[f
N
]
1.5x10
−5
Pass-Band Ripple
R
Step Response
Rise/Fall Time
τ
R
2.32x
∆
T
[
∆
T]
% Overshoot
Q
9.6
%
τ
S
Settling Time
30x
∆
T
[
∆
T]
