LCフィルタ係数
Coefficients for Butterworth LPF
n |
g1 |
g2 |
g3 |
g4 |
g5 |
g6 |
g7 |
g8 |
g9 |
g10 |
g11 |
1 |
2.0000 |
1.0000 |
|
|
|
|
|
|
|
|
|
2 |
1.4142 |
1.4142 |
1.0000 |
|
|
|
|
|
|
|
|
3 |
1.0000 |
2.0000 |
1.0000 |
1.0000 |
|
|
|
|
|
|
|
4 |
0.7654 |
1.8478 |
1.8478 |
0.7654 |
1.0000 |
|
|
|
|
|
|
5 |
0.6180 |
1.6180 |
2.0000 |
1.6180 |
0.6180 |
1.0000 |
|
|
|
|
|
6 |
0.5176 |
1.4142 |
1.9318 |
1.9318 |
1.4142 |
0.5176 |
1.0000 |
|
|
|
|
7 |
0.4450 |
1.2470 |
1.8019 |
2.0000 |
1.8019 |
1.2470 |
0.4450 |
1.0000 |
|
|
|
8 |
0.3902 |
1.1111 |
1.6629 |
1.9615 |
1.9615 |
1.6629 |
1.1111 |
0.3902 |
1.0000 |
|
|
9 |
0.3473 |
1.0000 |
1.5321 |
1.8794 |
2.0000 |
1.8794 |
1.5321 |
1.0000 |
0.3473 |
1.0000 |
|
10 |
0.3129 |
0.9080 |
1.4142 |
1.7820 |
1.9754 |
1.9754 |
1.7820 |
1.4142 |
0.9080 |
0.3129 |
1.0000 |
Coefficients for Chebyshev LPF, 0.5dB Ripple
n |
g1 |
g2 |
g3 |
g4 |
g5 |
g6 |
g7 |
g8 |
g9 |
g10 |
g11 |
2 |
1.4029 |
0.7071 |
1.9841 |
|
|
|
|
|
|
|
|
3 |
1.5963 |
1.0967 |
1.5963 |
1.0000 |
|
|
|
|
|
|
|
4 |
1.6703 |
1.1926 |
2.3661 |
0.8419 |
1.9841 |
|
|
|
|
|
|
5 |
1.7058 |
1.2296 |
2.5408 |
1.2296 |
1.7058 |
1.0000 |
|
|
|
|
|
6 |
1.7254 |
1.2479 |
2.6064 |
1.3137 |
2.4758 |
0.8696 |
1.9841 |
|
|
|
|
7 |
1.7372 |
1.2583 |
2.6381 |
1.3444 |
2.6381 |
1.2583 |
1.7372 |
1.0000 |
|
|
|
8 |
1.7451 |
1.2647 |
2.6564 |
1.3590 |
2.6964 |
1.3389 |
2.5093 |
0.8796 |
1.9841 |
|
|
9 |
1.7504 |
1.2690 |
2.6678 |
1.3673 |
2.7939 |
1.3673 |
2.6678 |
1.2690 |
1.7504 |
1.0000 |
|
10 |
1.7543 |
1.2721 |
2.6754 |
1.3725 |
2.7392 |
1.3806 |
2.7231 |
1.3485 |
2.5239 |
0.8842 |
1.9841 |