Cirrus Logic CS43122 - Manual (Page 23)

CS43122
23
-160
-140
-120
-100
-80
-60
-40
-20
0
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
Frequency (normalized to Fs)
A
m
pl
it
ude
dB
-160
-140
-120
-100
-80
-60
-40
-20
0
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)
A
m
pl
it
ude
dB
Figure 15. Operational Mode 2 Stopband Rejection Figure 16. Operational Mode 2 Transition Band
-0.1
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.1
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4
Frequency (normalized to Fs)
A
m
pl
it
ude
dB
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
0.35 0.37 0.39 0.41 0.43 0.45 0.47 0.49 0.51 0.53
Frequency (normalized to Fs)
A
m
pl
it
ude
dB
Figure 17. Operational Mode 2 Transition Band Figure 18. Operational Mode 2 Frequency Response
Figure 19. De-Emphasis Curve
Gain
dB
-10dB
0dB
Frequency
T2 = 15 µs
T1=50 µs
F1 F2
3.183 kHz 10.61 kHz