wm8742 Wolfson Microelectronics plc, wm8742 Datasheet - Page 7

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

Production Data
PIN DESCRIPTION (HARDWARE CONTROL MODE)
w
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
1
2
3
4
5
6
7
8
9
DSD64CLK
OSR/DSDR
VOUTRP
VOUTRN
VOUTLN
VOUTLP
DIFFHW
LRCLK /
AGNDR
AVDDR
AGNDL
AVDDL
BCLK /
VMIDR
ZFLAG
FSEL /
VMIDL
DGND
AGND
MCLK
DVDD
AVDD
DOUT
NAME
DSDL
IWO /
DINR
DIN /
DINL
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Digital Output
Internal pull-
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
input/output
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Tri-level
Tri-level
Supply
Supply
Output
Output
Output
Supply
Supply
Output
Output
Output
Digital
TYPE
down
Audio interface left/right clock input
Audio interface data input
Audio interface bit clock input
Selects between one of three digital
filters – see Table 50
Master clock input
Differential mono mode selection
0 = normal operation
1 = differential mono mode
Digital ground
Digital supply
Right analogue positive reference
Right analogue negative reference
Right analogue midrail decoupling pin
Right DAC positive output
Right DAC negative output
Analogue ground
Analogue supply
Left DAC negative output
Left DAC positive output
Left analogue midrail decoupling pin
Left analogue negative reference
Left analogue positive reference
Zero flag output
Controls internal oversampling rate:
0 = low rate
Z = medium rate
1 = high rate
Controls audio interface wordlength –
see Table 46
PCM MODE
DESCRIPTION
DSD left audio data in
Unused
64fs system clock input
Unused
Unused
Differential mono mode selection
0 = normal operation
1 = differential mono mode
Digital ground
Digital supply
Right analogue positive reference
Right analogue negative reference
Right analogue midrail decoupling pin
Right DAC positive output
Right DAC negative output
Analogue ground
Analogue supply
Left DAC negative output
Left DAC positive output
Left analogue midrail decoupling pin
Left analogue negative reference
Left analogue positive reference
Unused
DSD right audio data in
Unused
DSD DIRECT MODE
PD, Rev 4.2, August 2009
WM8742
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