wm8594seft-v Wolfson Microelectronics plc, wm8594seft-v Datasheet - Page 75
wm8594seft-v
Manufacturer Part Number
wm8594seft-v
Description
24-bit 192khz 2vrms Multi-channel Codec
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8594SEFT-V.pdf
(80 pages)
- Current page: 75 of 80
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Production Data
ADC FILTER RESPONSES
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 66 ADC Highpass Filter Response
w
Figure 64 ADC Digital Filter Frequency Response
MA GNITUDE(dB)
-100
-120
-140
-20
-40
-60
-80
20
-10
-12
-14
-16
-18
-20
0
-2
-4
-6
-8
0
0.00
0
2
4
0.25
6
Magnitude (dB) up to fs
H(z) =
8
Frequency
10
0.50
12
1 - 0.9995z
14
1 - z
0.75
16
-1
18
-1
20
Figure 65 ADC Digital Filter Ripple
-0.02
-0.04
-0.06
-0.08
0.08
0.06
0.04
0.02
-0.1
0.1
0
0.00
Magnitude (dB): Passband Ripple
Frequency
0.25
PD Rev 4.1 July 2008
WM8594
75
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