4
ZHCA053
FilterPro
TM
MFB
及
Sallen-Key
低通滤波器设计程序
http://www.ti.com.cn
SBFA001A
4 FilterPro
TM
MFB and Sallen-Key Low-Pass Filter Design Program
Figure 1. Response vs Frequency of
Even-Order (4-pole), 3 dB Ripple
Chebychev Filter Showing Cutoff at 0 dB.
Figure 2. Response vs. Frequency of
Even-Order (5-pole), 3 dB Ripple
Chebychev Filter Showing Cutoff at -3 dB
Figure 3. Real Pole Section (Unity-Gain,
First-Order Butterworth; f
-3dB
=
1/2·
π
ππ
π·R1·C1)
Figure 4. Second-Order Low-Pass Filter.
Figure 5. Third-Order Low-Pass Filter.
图
1.
偶数阶(
4
极点)、
3dB
纹波切比雪夫滤
波器的频率响应(截止于
0dB
)
图
2.
奇数阶(
5
极点)、
3dB
纹波切比雪夫滤
波器的频率响应(截止于
-3dB
)
SBFA001A
4 FilterPro
TM
MFB and Sallen-Key Low-Pass Filter Design Program
Figure 1. Response vs Frequency of
Even-Order (4-pole), 3 dB Ripple
Chebychev Filter Showing Cutoff at 0 dB.
Figure 2. Response vs. Frequency of
Even-Order (5-pole), 3 dB Ripple
Chebychev Filter Showing Cutoff at -3 dB
Figure 3. Real Pole Section (Unity-Gain,
First-Order Butterworth; f
-3dB
=
1/2·
π
ππ
π·R1·C1)
Figure 4. Second-Order Low-Pass Filter.
Figure 5. Third-Order Low-Pass Filter.
图
3.
实极点部件(单位增益、一阶巴特沃兹;
f
-3dB
=1/2
π
×
R1
×
C1
)
图
4.
二阶低通滤波器
SBFA001A
4 FilterPro
TM
MFB and Sallen-Key Low-Pass Filter Design Program
Figure 1. Response vs Frequency of
Even-Order (4-pole), 3 dB Ripple
Chebychev Filter Showing Cutoff at 0 dB.
Figure 2. Response vs. Frequency of
Even-Order (5-pole), 3 dB Ripple
Chebychev Filter Showing Cutoff at -3 dB
Figure 3. Real Pole Section (Unity-Gain,
First-Order Butterworth; f
-3dB
=
1/2·
π
ππ
π·R1·C1)
Figure 4. Second-Order Low-Pass Filter.
Figure 5. Third-Order Low-Pass Filter.
图
5.
三阶低通滤波器