CS4397
0
-20
0
-20
-40
-40
-60
-60
-80
-80
-100
-120
-140
-160
-100
-120
-140
-160
0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95
1
0.5
0.52
0.54
0.56
0.58
0.6
0.62
0.64
0.66
0.68
0.7
Frequency (normalized to Fs)
Frequency (normalized to Fs)
Figure 17. Quad-speed Stopband Rejection
Figure 18. Quad-speed Transition Band
0
-1
0.1
0.08
0.06
0.04
0.02
0
-2
-3
-4
-5
-6
-0.02
-0.04
-0.06
-0.08
-0.1
-7
-8
-9
-10
0.35
0.37
0.39
0.41
0.43
0.45
0.47
0.49
0.51
0.53
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Frequency (normalized to Fs)
Frequency (normalized to Fs)
Figure 19. Quad-speed Transition Band
Figure 20. Quad-speed Frequency Response
20
0
0
-20
-40
-60
-80
-20
-40
-60
-80
-100
-120
-100
-120
-140
.3
2.4
0.6
.4
3.2
0.8
.5
.6
4.4 4.8
1.2
.7
5.6
1.4
.8
6.4
1.6
.3
.4
.5
.6
.7
.8
.9
1.0
2
2.8
0.7
3.6
0.9
4.0
5.2
1.3
6.0
1.5
1
1.1
0.6 0.7 0.8 0.9
1
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9
Frequency (normalized to Fs)
Frequency (normalized to Fs)
Figure 21. 8x Interpolator Stop Band
Figure 22. 8x Interpolator Transition Band
0
-1
0.1
0.08
0.06
0.04
0.02
0
-2
-3
-4
-5
-6
-0.02
-0.04
-0.06
-0.08
-0.1
-7
-8
-9
-10
.25
.3
2.4
0.6
3.5
2.8
0.7
4.0
3.2
4.5
3.6
0.9
5.0
4.0
5.5
4.4
1.1
6.0
4.8
1.2
2
0
0
.05
0.1
.1
0.2
1.5
0.3
.2
0.4
.25
0.5
.3
0.6
0.5
0.8
1
Frequency (normalized to Fs)
Frequency (normalized to Fs)
Figure 23. 8x Interpolator Transition Band
Figure 24. 8x Interpolator Frequency Response
30
DS333F1
CIRRUS [ CIRRUS LOGIC ]
