Figure 15. quad-speed stopband rejection, Figure 16. quad-speed transition band, Figure 17. quad-speed transition band – Cirrus Logic CS4396 User Manual
Page 24: Figure 18. quad-speed frequency response, Figure 19. de-emphasis curve, Cs4396
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CS4396
24
DS288PP1
-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. Quad-speed Stopband Rejection
Figure 16. Quad-speed 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. Quad-speed Transition Band
Figure 18. Quad-speed 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
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