WM8731 / WM8731L
Production Data
DAC FILTER RESPONSES
0.04
0.03
0.02
0.01
0
0
-20
-40
-60
-0.01
-0.02
-0.03
-0.04
-80
-100
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
0.4
0.2
0.45
0.5
Frequency (Fs)
Frequency (Fs)
Figure 35 DAC Digital Filter Frequency Response –Type 0
Figure 36 DAC Digital Filter Ripple –Type 0
0.04
0.03
0.02
0.01
0
0
-20
-40
-60
-0.01
-0.02
-0.03
-0.04
-80
-100
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
0.45
0.5
Frequency (Fs)
Frequency (Fs)
Figure 37 DAC Digital Filter Frequency Response –Type 1
Figure 38 DAC Digital Filter Ripple –Type 1
0.02
0.01
0
0
-20
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06
-40
-60
-80
-100
0
0.5
1
1.5
2
2.5
3
0
0.05
0.1
0.15
0.25
Frequency (Fs)
Frequency (Fs)
Figure 39 DAC Digital Filter Frequency Response –Type 2
Figure 40 DAC Digital Filter Ripple –Type 2
PD, Rev 4.9, October 2012
56
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
