wm8987 Wolfson Microelectronics plc, wm8987 Datasheet - Page 50

• Manufacturer Part Number: wm8987
• Description: Stereo Codec For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

WM8987L
Figure 28 DAC Digital Filter Frequency Response – Type 3 Figure 29 DAC Digital Filter Ripple – Type 3
Figure 30 ADC Digital Filter Frequency Response – Type 0
Figure 32 ADC Digital Filter Frequency Response – Type 1
w
ADC FILTER RESPONSES
-100
-20
-40
-60
-80
-100
-100
0
-20
-40
-60
-80
-20
-40
-60
-80
0
0
0
0
0
0.5
0.5
0.5
1
1
1
Frequency (Fs)
Frequency (Fs)
Frequency (Fs)
1.5
1.5
1.5
2
2
2
2.5
2.5
2.5
3
3
3
Figure 31 ADC Digital Filter Ripple – Type 0
Figure 33 ADC Digital Filter Ripple – Type 1
-0.05
-0.15
-0.25
0.25
0.15
0.05
-0.1
-0.2
0.2
0.1
0
-0.01
-0.02
-0.03
-0.04
0
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06
0.04
0.03
0.02
0.01
0.02
0.01
0
0
0
0
0.05
0.05
0.05
0.1
0.1
0.15
0.15
0.1
Frequency (Fs)
0.2
0.2
Frequency (Fs)
Frequency (Fs)
0.25
0.15
0.25
0.3
0.3
PD Rev 4.0 August 2008
0.35
0.2
0.35
0.4
Production Data
0.4
0.25
0.45
0.45
0.5
0.5
50