Figure 25. dsd frequency response, Figure 26. dsd transition band, Figure 27. dsd transition band – Cirrus Logic CS4397 User Manual
Page 31: Figure 28. de-emphasis curve, Cs4397
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CS4397
DS333F1
31
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0
1
2
3
4
5
6
7
8
9
10
Frequency (normalized to Fs)
A
m
pli
tude
dB
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
2.5
3
3.5
4
4.5
5
5.5
6
Frequency (normalized to Fs)
A
m
pli
tude
dB
Figure 25. DSD Frequency Response
Figure 26. DSD Transition Band
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
0
0.5
1
1.5
2
2.5
3
3.5
4
Frequency (normalized to Fs)
A
m
pli
tude
dB
Figure 27. DSD Transition Band
Figure 28. 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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