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IC BLOCK DIAGRAM AND DESCRIPTION
WM8719(24 bit differential stereo DAC with volume control)
LATCH SDIN
CONTROL INTERFACE
BCKIN
LRCIN
MUTE
SERIAL
DIN
INTER-
FACE
MUTE
DSDCLK64
OSD DATA
DSDCLK128
INTER-
DSDR
FACE
DSDL
AGND
DGND
PIN NAME
1
LRCIN
2
LATCH
3
SCLK
4
SDIN
5
DVDD
6
DGND
7
AVDD
8
VREFP
9
VREFN
10 AGND
11 VMID
12 ZEROFR
13 VOUTRN
14 VOUTRP
15 VOUTLP
16 VOUTLN
17 ZEROFL
18 NC
19 NC
20 DSDR
21 DSDL
22 DSDCLK64
Digital bi-directional DSD format clock at 64fs
23 DSDCLK128 Digital bi-directional DSD format clock at 128fs.(Optional for OSD bi-phase mode)
24 NC
25 SDOUT
26 MCLK
27 BCLKIN
28 DIN
SCLK SDOUT ZEROFR ZEROFL
PCM/DSD
SIGMA
DELTA
MUX
MODULATOR
DIGITAL
PCM/DSD
FILTERS
SIGMA
DELTA
MUX
MODULATOR
MCLK
AVDD
DVDD
VREFP VREFP
TYPE
Digital input
PCM DAC sample clock input
Digital input
Serial control load input
Digital input
Serial control data input clock
Digital
Serial control data input clock
Supply
Digital positive supply
Supply
Digital ground supply
Supply
Analog ground supply
Supply
DAC positive reference
Supply
DAC negative reference
Supply
Analog ground supply DAC positive reference
Analog output
Mid rail decoupling point
Digital output
Infinite ZERO detect flag for right channel
Analog output
Right channel DAC output positive
Analog output
Right channel DAC output negative
Analog output
Left channel DAC output positive
Analog output
Left channel DAC output negative
Digital output
Infinite ZERO detect flag for left channel
Digital input
Right channel DSD bitstream input
Digital input
Left channel DSD bitstream input
Digital output
Serial control data output
Digital input
Master clock input
Digital input
PCM audio data bit clock input
Digital input
PCM serial audio data input
LRCLK
LATCH
SCLK
SDIN
VOUTRP
RIGHT
DVDD
DAC
DVSS
VOUTRN
AVDD
VREFP
VOUTLP
LEFT
VREFN
DAC
AVSS
VOUTLN
VMID
ZEROFR
VMID
VOUTRN
VOUTRP
DESCRIPTION
TX-NR1000
1
28
DIN
BCLK
2
27
MCLK
3
26
SDOUT
4
25
NC
5
24
DSDCLK128
6
23
7
22
DSDCLK64
Top View
8
21
DSDL
9
20
DSDR
10
19
NC
11
18
NC
ZEROFL
12
17
13
16
VOUTLN
VOUTLP
14
15
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