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WM8352 Datasheet(PDF) 323 Page - Wolfson Microelectronics plc

Part # WM8352
Description  Wolfson AudioPlus™ Stereo CODEC with Power Management
PDF  336 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8352 Datasheet(HTML) 323 Page - Wolfson Microelectronics plc

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Production Data
WM8352
w
PD, February 2011, Rev 4.4
323
28 DIGITAL FILTER CHARACTERISTICS
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ADC Filter
Passband
+/- 0.025dB
0
0.454fs
-6dB
0.5fs
Passband Ripple
+/- 0.025
dB
Stopband
0.546fs
Stopband Attenuation
f > 0.546fs
-60
dB
Group Delay
21/fs
ADC High Pass Filter
High Pass Filter Corner
Frequency
-3dB
3.7
Hz
-0.5dB
10.4
-0.1dB
21.6
DAC Filter
Passband
+/- 0.035dB
0
0.454fs
-6dB
0.5fs
Passband Ripple
+/-0.035
dB
Stopband
0.546fs
Stopband Attenuation
f > 0.546fs
-55
dB
Group Delay
29/fs
Terminology
1.
Stop Band Attenuation (dB) – the degree to which the frequency spectrum is attenuated (outside audio band)
2.
Pass-band Ripple – any variation of the frequency response in the pass-band region
28.1 DAC FILTER RESPONSES
MAGNITUDE(dB)
0
4.41k
8.82k
13.23k
17.64k
22.05k
26.46k
30.87k
35.28k
39.69k
44.1k
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
MAGNITUDE(dB)
0
2.205k
4.41k
6.615k
8.82k
11.025k
13.23k
15.435k
17.64k
19.845k
22.05k
-5m
-2m
999.99u
4m
7m
10m
13m
16m
19m
22m
25m
28m
31m
34m
37m
40m
Figure 81 DAC Digital Filter Frequency Response (Normal
Mode)
Figure 82 DAC Digital Filter Ripple (Normal Mode)



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