Digital Signal Processing Reference
In-Depth Information
LPF255F0.2
0
120
-20
100
-40
80
-60
60
-80
40
20
-100
-120
0
-20
-140
-160
-40
0
100
200
0 .2 .4 .6 .81
Normalised Frequency,
F
Index,
k
Normalized Frequency,
F
1.2
0.1
0.08
1
0.06
0.8
0.04
0.02
0.6
0
0.4
-0.02
-0.04
0.2
-0.06
0
-0.08
-0.2
-0.1
0
100
200
0
0.04
0.08
0.12
0.16
0.2
Index,
k
Normalised Frequency,
F
Normalized Frequency,
F
Performance Features
Parameter
Symbol
Value
Units
Frequency Response
F
-3dB
0.1969x f
N
[f
N
]
-3 dB Cut-off Frequency
Maximum Attenuation
A
−
94.2
dB
0.023x f
N
[f
N
]
Transition Width
∆
F
3.0x10
−5
Pass-Band Ripple
R
Step Response
τ
R
Rise/Fall Time
4.9x
∆
T
[
∆
T]
% Overshoot
Q
8.5
%
S
τ
Settling Time
41x
∆
T
[
∆
T]
