Production Data
WM8741
PCM MODE FILTER RESPONSES
0.1
0.08
0.06
0.04
0.02
0
0
-50
-100
-150
-200
-0.02
-0.04
-0.06
-0.08
-0.1
0
0.5
1
1.5
2
2.5
3
3.5
4
0
0.1
0.2
0.3
0.4
0.5
Frequency (fs)
Frequency (fs)
Figure 28 Low Rate PCM Filter 1 Frequency Response
Figure 29 Low Rate PCM Filter 1 Ripple
0.1
0.08
0.06
0.04
0.02
0
0
-50
-100
-150
-200
-0.02
-0.04
-0.06
-0.08
-0.1
0
0.1
0.2
0.3
0.4
0.5
0
0.5
1
1.5
2
2.5
3
3.5
4
Frequency (fs)
Frequency (fs)
Figure 30 Low Rate PCM Filter 2 Frequency Response
Figure 31 Low Rate PCM Filter 2 Ripple
0.1
0.08
0.06
0.04
0.02
0
0
-50
-100
-150
-200
-0.02
-0.04
-0.06
-0.08
-0.1
0
0.1
0.2
0.3
0.4
0.5
0
0.5
1
1.5
2
2.5
3
3.5
4
Frequency (fs)
Frequency (fs)
Figure 32 Low Rate PCM Filter 3 Frequency Response
Figure 33 Low Rate PCM Filter 3 Ripple
PD, Rev 4.2, October 2009
53
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
