WM8742 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'WM8742' PDF : 65 Pages View PDF
WM8742
PIN
NAME
24
MODE /
LRSEL
25
MUTEB /
SDOUT
TYPE
PCM MODE
Digital input,
tri-level
Digital input or
output:
Internal pull-up
When DIFFHW=0:
0 = hardware mode
1 = 3-wire software mode
Z = 2-wire software mode
When DIFFHW=1:
0 = left channel mono
1 = right channel mono
Softmute Control
0 = mute active
1 = normal operation
Production Data
DESCRIPTION
DSD DIRECT MODE
When DIFFHW=0:
0 = hardware mode
1 = 3-wire software mode
Z = 2-wire software mode
When DIFFHW=1:
0 = left channel mono
1 = right channel mono
Analogue Mute Control
0 = mute active
1 = normal operation
26
SDIN /
Digital input De-emphasis Control
DEEMPH
Tri-level
0 = normal operation
1 = de-emphasis applied
Z = anti-clipping digital filter mode
27
SCLK /
Digital input HW Mode Select:
DSD
0 = PCM
1 = DSD Direct
28
CSB /
Digital input Controls audio interface format – see
SADDR /
Table 46
I2S
Notes:
1. Undefined inputs should be connected to DVDD or DGND
2. Tri-level pins who require the ‘Z’ state to be selected should be left floating (open)
Unused
HW Mode Select:
0 = PCM
1 = DSD Direct
Unused
w
PD, Rev 4.3, February 2013
8
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