wm8742 Wolfson Microelectronics plc, wm8742 Datasheet - Page 6

• Manufacturer Part Number: wm8742
• Description: 24-bit 192khz Dac With Advanced Digital Filtering
• Manufacturer: Wolfson Microelectronics plc

WM8742
Notes:
1.
2.
w
PIN
24
25
26
27
28
Undefined inputs should be connected to DVDD or DGND
Tri-level pins which require the ‘Z’ state to be selected should be left floating (open)
DEEMPH
MUTEB /
SADDR /
MODE /
SDOUT
LRSEL
SCLK /
SDIN /
NAME
CSB /
DSD
I
2
S
Digital input or
Internal pull-up
Digital input,
Digital input
Digital input
Digital input
Tri-level
output:
tri-level
TYPE
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
NOTE: In 3-wire mode
only, this pin may be
used as a buffered
control interface data
output
Serial control interface
data input
Serial control interface
clock input
3-wire mode: serial
control interface latch
2-wire mode: device
address select
PCM 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
Softmute Control
0 = mute active
1 = normal operation
Serial control interface
data input
Serial control interface
clock input
3-wire mode: serial
control interface latch
2-wire mode: device
address select
8FS PCM MODE
DESCRIPTION
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
Softute Control
0 = mute active
1 = normal operation
NOTE: In DSD Direct
mode this is an analogue
mute
Serial control interface
data input
Serial control interface
clock input
3-wire mode: serial
control interface latch
2-wire mode: device
address select
PD, Rev 4.2,August 2009
DSD MODES
Production Data
6