WM8731 Wolfson Microelectronics Ltd., WM8731 Datasheet - Page 55
WM8731
Manufacturer Part Number
WM8731
Description
WM8731 : Low Power Audio Codec With Integrated Headphone Driver
Manufacturer
Wolfson Microelectronics Ltd.
Datasheet
1.WM8731.pdf
(59 pages)
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WM8731
DIGITAL DE-EMPHASIS CHARACTERISTICS
Figure 49 De-Emphasis Frequency Response (32kHz)
Figure 51 De-Emphasis Frequency Response (44.1kHz)
Figure 53 De-Emphasis Frequency Response (48kHz)
-10
-10
-10
-2
-4
-6
-8
-2
-4
-6
-8
-2
-4
-6
-8
0
0
0
0
0
0
2000
5000
5000
4000
6000
10000
Frequency (Fs)
Frequency (Fs)
Frequency (Fs)
10000
8000
10000
15000
15000
12000
20000
14000
20000
16000
Figure 50 De-Emphasis Error (32kHz)
Figure 52 De-Emphasis Error (44.1kHz)
Figure 54 De-Emphasis Error (48kHz)
-0.1
-0.2
-0.3
-0.4
-0.1
-0.2
-0.3
-0.4
-0.1
-0.2
-0.3
-0.4
0.4
0.3
0.2
0.1
0.4
0.3
0.2
0.1
0.4
0.3
0.2
0.1
0
0
0
0
0
0
2000
5000
5000
4000
6000
10000
Frequency (Fs)
Frequency (Fs)
Frequency (Fs)
10000
8000
10000
15000
15000
AI Rev 2.3 August 2001
Advanced Information
12000
20000
14000
20000
16000
55