WM8580
Production
Data
w
PD, Rev 4.7, March 2009
98
DIGITAL DE-EMPHASIS CHARACTERISTICS
-10
-8
-6
-4
-2
0
0
5
10
15
20
Response (dB)
Frequency (kHz)
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0
5
10
15
20
Response (dB)
Frequency (kHz)
Figure 47 De-Emphasis Frequency Response (44.1kHz)
Figure 48 De-Emphasis Error (44.1kHz)
-10
-8
-6
-4
-2
0
0
5
10
15
20
Response (dB)
Frequency (kHz)
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0
5
10
15
20
Response (dB)
Frequency (kHz)
Figure 49 De-Emphasis Frequency Response (48kHz)
Figure 50 De-Emphasis Error (48kHz)
ADC FILTER RESPONSES
-80
-60
-40
-20
0
0
0.5
1
1.5
2
2.5
3
Response (dB)
Frequency (Fs)
-0.02
-0.015
-0.01
-0.005
0
0.005
0.01
0.015
0.02
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
Response (dB)
Frequency (Fs)
Figure 51 ADC Digital Filter Frequency Response
Figure 52 ADC Digital Filter Ripple
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