Pre-Production
WM8940
DAC FILTER RESPONSES
0.2
0.15
0.1
0
-20
-40
0.05
0
-60
-0.05
-0.1
-0.15
-0.2
-80
-100
-120
0
0.5
1
1.5
2
2.5
3
0
0.1
0.2
0.3
0.4
0.5
Frequency (Fs)
Frequency (Fs)
Figure 39 DAC Digital Filter Ripple
Figure 38 DAC Digital Filter Frequency Response
ADC FILTER RESPONSES
0.2
0.15
0.1
0
-20
0.05
0
-40
-60
-0.05
-0.1
-0.15
-0.2
-80
-100
-120
0
0.1
0.2
0.3
0.4
0.5
0
0.5
1
1.5
2
2.5
3
Frequency (Fs)
Frequency (Fs)
Figure 40 ADC Digital Filter Frequency Response
Figure 41 ADC Digital Filter Ripple
Pre-Production, Rev 3.0, February 2007
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