wm8569seds-v Wolfson Microelectronics plc, wm8569seds-v Datasheet - Page 31

• Manufacturer Part Number: wm8569seds-v
• Description: 24-bit, 192khz Stereo Codec With Volume Control
• Manufacturer: Wolfson Microelectronics plc

Production Data
ADC FILTER RESPONSES
Figure 25 ADC Digital Filter Frequency Response
ADC HIGH PASS FILTER
The WM8569 has a selectable digital high pass filter to remove DC offsets. The filter response is characterised by the
following polynomial.
DIGITAL DE-EMPHASIS CHARACTERISTICS
Figure 27 De-Emphasis Frequency Response (32kHz)
w
-20
-40
-60
-80
-10
-2
-4
-6
-8
0
0
0
0
2
0.5
4
1
6
Frequency (kHz)
Frequency (Fs)
H
(
1.5
z
8
)
1
10
2
1
. 0
9995
12
z
1
2.5
z
14
1
16
3
Figure 26 ADC Digital Filter Ripple
Figure 28 De-Emphasis Error (32kHz)
-0.005
-0.015
0.015
0.005
-0.01
-0.02
0.02
0.01
-0.5
-1.5
-2.5
0.5
-1
-2
-3
0
1
0
0
0
0.05
2
0.1
4
0.15
6
0.2
Frequency (kHz)
Frequency (Fs)
0.25
8
0.3
10
PD Rev 4.0 June 2006
0.35
12
0.4
WM8569
14
0.45
0.5
16
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