wm8742 Wolfson Microelectronics plc, wm8742 Datasheet - Page 8
wm8742
Manufacturer Part Number
wm8742
Description
24-bit 192khz Dac With Advanced Digital Filtering
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8742.pdf
(64 pages)
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WM8742
Notes:
1.
2.
w
PIN
24
25
26
27
28
Undefined inputs should be connected to DVDD or DGND
Tri-level pins who 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
De-emphasis Control
0 = normal operation
1 = de-emphasis applied
Z = anti-clipping digital filter mode
HW Mode Select:
0 = PCM
1 = DSD Direct
Controls audio interface format – see
Table 46
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
Analogue Mute Control
0 = mute active
1 = normal operation
Unused
HW Mode Select:
0 = PCM
1 = DSD Direct
Unused
DSD DIRECT MODE
PD, Rev 4.2,August 2009
Production Data
8
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