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WM8912 Просмотр технического описания (PDF) - Cirrus Logic

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WM8912 Datasheet PDF : 129 Pages
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WM8912
DE-EMPHASIS FILTER RESPONSES
0
-1 0
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-6
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-10
MAGNITUDE(dB)
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Frequency (Hz)
Production Data
0.3
0.25
0.2
0.15
0.1
0.05
0
0
-0.05
-0.1
-0.15
MAGNITUDE(dB)
2000 4000 6000 8000 10000 12000 14000 16000 18000
Frequency (Hz)
Figure 9 De-Emphasis Digital Filter Response (32kHz)
Figure 10 De-Emphasis Error (32kHz)
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-1 0
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-10
5000
MAGNITUDE(dB)
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Frequency (Hz)
20000
25000
0.2
0.15
0.1
0.05
0
0
-0.05
-0.1
MAGNITUDE(dB)
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Frequency (Hz)
Figure 11 De-Emphasis Digital Filter Response (44.1kHz)
Figure 12 De-Emphasis Error (44.1kHz)
25000
0
0
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-12
5000
MAGNITUDE(dB)
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Frequency (Hz)
0.15
0.1
0.05
0
0
-0.05
-0.1
-0.15
MAGNITUDE(dB)
5000
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20000
25000
30000
Frequency (Hz)
Figure 13 De-Emphasis Digital Filter Response (48kHz)
Figure 14 De-Emphasis Error (48kHz)
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PD, Rev 4.1, February 2013
20

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