XWM8706EDS Ver la hoja de datos (PDF) - Wolfson Microelectronics plc
Número de pieza
componentes Descripción
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XWM8706EDS Datasheet PDF : 24 Pages
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WM8706
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INFINITE ZERO DETECTION
Setting the IZD register bit determines whether the device is automuted when a sequence of
more than 1024 zeros is detected.
REGISTER ADDRESS BIT LABEL
011
8
IZD
Interface Control
Table 22 IZD Control
DEFAULT
0
DESCRIPTION
Infinite zero detection circuit control
and automute control
0: Infinite zero detect disabled
1: Infinite zero detect enabled
DIGITAL FILTER CHARACTERISTICS
PARAMETER
SYMBOL TEST CONDITIONS
MIN
Passband Edge
-3dB
Passband Ripple
f < 0.444fs
Stopband Attenuation
f > 0.555fs
-60
Table 23 Digital Filter Characteristics
TYP
0.487fs
MAX
±0.05
UNIT
dB
dB
DAC FILTER RESPONSES
0
-20
-40
-60
-80
-100
-120
0
0.5
1
1.5
2
2.5
Frequency (Fs)
Figure 12 DAC Digital Filter Frequency Response
- 44.1, 48 and 96kHz
0
-20
0.2
0.15
0.1
0.05
0
-0.05
-0.1
-0.15
-0.2
3
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
Frequency (Fs)
Figure 13 DAC Digital Filter Ripple - 44.1, 48 and 96kHz
0.2
0
-0.2
-40
-0.4
-60
-80
0
0.2
0.4
0.6
0.8
Frequency (Fs)
Figure 14 DAC Digital Filter Frequency Response
- 192kHz
-0.6
-0.8
-1
1
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
Frequency (Fs)
Figure 15 DAC Digital Filter Ripple - 192kHz
WOLFSON MICROELECTRONICS LTD
PP Rev 1.2 April 2001
20
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