WM8580
Production Data
DIGITAL DE-EMPHASIS CHARACTERISTICS
0
-2
0.4
0.3
0.2
0.1
0
-4
-6
-0.1
-0.2
-0.3
-0.4
-8
-10
0
5
10
15
20
0
5
10
15
20
Frequency (kHz)
Frequency (kHz)
Figure 41 De-Emphasis Frequency Response (44.1kHz)
Figure 42 De-Emphasis Error (44.1kHz)
0
1
0.8
0.6
0.4
0.2
0
-2
-4
-6
-0.2
-0.4
-0.6
-0.8
-1
-8
-10
0
5
10
15
20
0
5
10
15
20
Frequency (kHz)
Frequency (kHz)
Figure 43 De-Emphasis Frequency Response (48kHz)
Figure 44 De-Emphasis Error (48kHz)
ADC FILTER RESPONSES
0.02
0.015
0.01
0
-20
-40
-60
-80
0.005
0
-0.005
-0.01
-0.015
-0.02
0
0.5
1
1.5
2
2.5
3
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
Frequency (Fs)
Frequency (Fs)
Figure 45 ADC Digital Filter Frequency Response
Figure 46 ADC Digital Filter Ripple
PD Rev 4.3 August 2007
92
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
