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WM8741 Datasheet(PDF) 39 Page - Cirrus Logic

Part # WM8741
Description  24-bit 192kHz DAC with Advanced Digital Filtering
PDF  66 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8741 Datasheet(HTML) 39 Page - Cirrus Logic

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Production Data
WM8741
w
PD, Rev 4.3, February 2013
39
HARDWARE CONTROL MODE
When the MODE pin is held ‘low’ the WM8741 is set to hardware control mode and a limited feature
set can be configured.
PIN
NAME
DESCRIPTION
24
MODE/
LRSEL
0 = Hardware control mode
1 = 3-wire serial control mode
Z = 2-wire serial control mode
Table 44 MODE/LRSEL Hardware Control Pin Function
DSD AND PCM MODE SWITCHING
The audio interface mode can be switched between DSD Direct and PCM by controlling the state of
pin DSD. It is recommended that the chip is forced into a MUTE state before dynamically switching
modes.
PIN
NAME
DESCRIPTION
27
SCLK/DSD
0 = PCM Mode
1 = DSD Direct Mode
Table 45 SCLK/DSD Hardware Control Pin Function
AUDIO INPUT FORMAT
Under hardware control, it is possible to select between four different modes of operation for the PCM
audio interface.
PIN NUMBER
28
23
DESCRIPTION
NAME
CSB/SADDR/I2S
IWO/DOUT
STATUS
0
0
16-bit right justified
0
1
24-bit right justified
1
0
24-bit left justified
1
1
24-bit I
2S
Table 46 CSB/SADDR/I2S and IWO/DOUT Hardware Control Pin Function



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