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WM8594 Datasheet(PDF) 73 Page - Wolfson Microelectronics plc

Part # WM8594
Description  24-bit 192kHz 2Vrms Multi-Channel CODEC
PDF  78 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8594 Datasheet(HTML) 73 Page - Wolfson Microelectronics plc

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WM8594
w
PP Rev 1.0 January 2007
73
ADC FILTER RESPONSES
Magnitude (dB) up to fs
-140
-120
-100
-80
-60
-40
-20
0
20
0.00
0.25
0.50
0.75
Frequency
Magnitude (dB): Passband Ripple
-0.1
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.1
0.00
0.25
Frequency
Figure 60 ADC Digital Filter Frequency Response
Figure 61 ADC Digital Filter Ripple
ADC HIGH PASS FILTER
The WM8594 has a selectable digital high pass filter to remove DC offsets. The filter response is characterised by the
following polynomial.
Figure 62 ADC Highpass Filter Response
1 - z-1
1 - 0.9995z-1
H(z) =
MA GNITUDE(dB)
0
2
4
6
8
10121416
18
20
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0



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