Cirrus Logic CS4955 User Manual
Page 30
CS4954 CS4955
30
DS278F6
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Chroma Output Interpolator Pass band
Frequency (MHz)
Magnitude Response (dB)
Figure 18. Chrominance output interpolation filter transfer
characteristic (passband)
Figure 19. Luminance interpolation filter transfer charac-
teristic
0
2
4
6
8
10
12
14
-40
-35
-30
-25
-20
-15
-10
-5
0
Luma Output Interpolation Filter Response at 27MHz full scale
Frequency (MHz)
Magnitude Response (dB)
0
1
2
3
4
5
6
7
8
-3.5
-3
-2.5
-2
-1.5
-1
-0.5
0
0.5
Luma Output Interpolation Filter Response at 27 MHz (-3 dB)
Frequency (MHz)
Magnitude Response (dB)
Figure 20. Luminance interpolation filter transfer charac-
terstic (passband)
Figure 21. Chrominance interpolation filter transfer char-
acteristic for RGB datapath
0
2
4
6
8
10
12
-40
-35
-30
-25
-20
-15
-10
-5
0
RGB datapath filter for rgb_bw = 0 full scale
Frequency (MHz)
Magnitude Response (dB)