WM8971L Wolfson Microelectronics Ltd., WM8971L Datasheet - Page 54

• Manufacturer Part Number: WM8971L
• Description: Stereo Codec for Portable Audio Applications
• Manufacturer: Wolfson Microelectronics Ltd.

WM8971L
Figure 41 ADC Digital Filter Frequency Response – Type 2
Figure 43 ADC Digital Filter Frequency Response – Type 2
Figure 45 De-emphasis Frequency Response (32kHz)
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DE-EMPHASIS FILTER RESPONSES
-100
-20
-40
-60
-80
-100
0
-20
-40
-60
-80
-10
-2
-4
-6
-8
0
0
0
0
0
2000
0.5
0.5
4000
1
1
6000
Frequency (Fs)
Frequency (Fs)
Frequency (Fs)
1.5
8000
1.5
10000
2
2
12000
2.5
2.5
14000
16000
3
3
Figure 42 ADC Digital Filter Ripple – Type 2
Figure 44 ADC Digital Filter Ripple – Type 3
Figure 46 De-emphasis Error (32kHz)
-0.05
-0.15
-0.25
0.25
0.15
0.05
-0.1
-0.2
0.2
0.1
-0.05
-0.15
-0.25
0.25
0.15
0.05
-0.1
-0.2
-0.1
-0.2
-0.3
-0.4
0
0.2
0.1
0.4
0.3
0.2
0.1
0
0
0
0
0
2000
0.05
0.05
4000
6000
0.1
Frequency (Fs)
0.1
Frequency (Fs)
Frequency (Fs)
8000
0.15
0.15
10000
PD Rev 4.1 August 2005
12000
0.2
0.2
Production Data
14000
16000
0.25
0.25
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