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WM8956 датащи(PDF) 73 Page - Wolfson Microelectronics plc

номер детали WM8956
подробное описание детали  Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
PDF  80 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8956 датащи(HTML) 73 Page - Wolfson Microelectronics plc

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Preliminary Technical Data
WM8956
w
PTD, July 2007, Rev 2.1
73
DIGITAL FILTER CHARACTERISTICS
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DAC Normal Filter
+/- 0.03dB
0
0.454 fs
Passband
-6dB
0.5 fs
Passband Ripple
0.454 fs
+/- 0.03
dB
Stopband
0.546 fs
Stopband Attenuation
f > 0.546 fs
-50
dB
DAC Sloping Stopband Filter
+/- 0.03dB
0
0.25 fs
+/- 1dB
0.25 fs
0.454 fs
Passband
-6dB
0.5 fs
Passband Ripple
0.25 fs
+/- 0.03
dB
Stopband 1
0.546 fs
0.7 fs
Stopband 1 Attenuation
f > 0.546 fs
-60
dB
Stopband 2
0.7 fs
1.4 fs
Stopband 2 Attenuation
f > 0.7 fs
-85
dB
Stopband 3
1.4 fs
Stopband 3 Attenuation
f > 1.4 fs
-55
dB
DAC FILTERS
Mode
Group Delay
Normal
18 / fs
Sloping Stopband
18 / fs
DAC FILTER RESPONSES
DAC STOPBAND ATTENUATION
The DAC digital filter type is selected by the DACSLOPE register bit as shown in Table 42.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R6 (06h)
DAC Control (2)
1
DACSLOPE
0
Selects DAC filter characteristics
0 = Normal mode
1 = Sloping stopband mode
Table 42 DAC Filter Selection



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