CS42438 Datasheet, PDF (55/64 Pages) Cirrus Logic – 108 dB, 192 kHz 6-in, 8-out TDM CODEC

9 APPENDIX B: ADC FILTER PLOTS
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Frequency (normalized to Fs)
Figure 26. SSM Stopband Rejection
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
0.45 0.46 0.47 0.48 0.49 0.5 0.51 0.52 0.53 0.54 0.55
Frequency (normalized to Fs)
Figure 28. SSM Transition Band (Detail)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Frequency (normalized to Fs)
Figure 30. DSM Stopband Rejection
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
0.40
0 .4 2
0 .4 4
0.46
0.48
0.50
0.52
0.54
0.56
0.58
0 .6 0
Frequency (normalized to Fs)
Figure 27. SSM Transition Band
0.10
0.08
0.06
0.04
0.02
0.00
-0.02
-0.04
-0.06
-0.08
-0.10
0
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
Frequency (normalized to Fs)
Figure 29. SSM Passband Ripple
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
0.40
0.42
0.44
0.46
0.48
0.50
0.52
0.54
0.56
0.58
0.60
Frequency (normalized to Fs)
Figure 31. DSM Transition Band
DS646PP2
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