WM8731 / WM8731L
Production Data
DIGITAL DE-EMPHASIS CHARACTERISTICS
0
0.4
0.3
0.2
0.1
0
-2
-4
-6
-0.1
-0.2
-0.3
-0.4
-8
-10
0
2000
4000
6000
8000
10000 12000 14000 16000
0
2000
4000
6000
8000
10000 12000 14000 16000
Frequency (Fs)
Frequency (Fs)
Figure 51 De-Emphasis Frequency Response (32kHz)
Figure 52 De-Emphasis Error (32kHz)
0
-2
0.4
0.3
0.2
0.1
0
-4
-6
-0.1
-0.2
-0.3
-0.4
-8
-10
0
5000
10000
Frequency (Fs)
15000
20000
0
5000
10000
Frequency (Fs)
15000
20000
Figure 53 De-Emphasis Frequency Response (44.1kHz)
Figure 54 De-Emphasis Error (44.1kHz)
0
-2
0.4
0.3
0.2
0.1
0
-4
-6
-0.1
-0.2
-0.3
-0.4
-8
-10
0
5000
10000
15000
20000
0
5000
10000
15000
20000
Frequency (Fs)
Frequency (Fs)
Figure 55 De-Emphasis Frequency Response (48kHz)
Figure 56 De-Emphasis Error (48kHz)
PD, Rev 4.8, April 2009
59
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