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IC BLOCK DIAGRAM AND DESCRIPTION
WM8716(24 bit 192kHz Stereo DAC)
MODE ML/12S MC/DM1 MD/DM0 DIFFHW MUTEB CSB/WO RSTB ZERO MODEBX AGNDR AVDDR
(24)
(28)
(27)
CONTROL INTERFACE
MUTE/
ATTEN
SERIAL
BCKIN(3)
INTER-
LRCIN(1)
FACE
MUTE/
DIN(2)
ATTEN
CRYSTAL/OSC
(4)
CLKO
PIN NAME
TYPE
1
LRCIN
Digital input
2
DIN
Digital input
3
BCKIN
Digital input
4
CLKO
Digital output
5
XTI
Analog input
6
XTO
Analog ioutput
7
DGND
Supply
8
DVDD
Supply
9
AVDDR
Supply
10 AGNDR
Supply
11 VMIDR
Analog ioutput
12 MODE8X
Digital input
13 VOUTR
Analog ioutput
14 AGNDR
Supply
15 AVDDR
Supply
16 VOUTL
Analog ioutput
17 DIFFHW
Digital input
18 VMIDL
Analog ioutput
19 AGNDL
Supply
20 AVDDL
Supply
21 ZERO
Digital output
22 RSTB
Digital input
23 CSBIWO
Digital input
24 MODE8X
Digital input
25 MUTEB
Digital input
26 MD/DM0
Digital input
27 MC/DM1
Digital input
28 ML/12S
Digital input
(26)
(17)
(25)
(23)
(22)
SIGMA
DELTA
MUX
MODULATOR
DIGITAL
SIGMA
FILTERS
MUX
DELTA
MODULATOR
(5)
(6)
(15)
(8)
XTI
XTO
AVDD
DVDD
DESCRIPTION
Sampling rate clock input
Audio data serial input
Audio data bit clock input
Oscillator buffered output
Oscillator input
Oscillator output
Digital ground supply
Digital positive supply
Analog positive supply
Analog ground supply
Mid rail right channel
Internal pull-down, active high, 8xfs mode
Right channel DAC output
Analog ground supply
Analog positive supply
Left channel DAC output
Internal pull-down, active high, differential mono mode
Mid rail left channel
Analog ground supply
Analog positive supply
Infinite zero detect-active low. Open drain type output with active pull-down.
Rest input-active low. Internal pull-up.
Low for serial interface operation.
High for software mode
Low to soft mute. High for normal operation. Z for automute.
Control serial interface data signal.
Control serial interface clock signal.
Control signal interface load signal.
(21)
(12)
(10)
(9)
LOW
RIGHT
PASS
DAC
FILTER
LOW
LEFT
PASS
DAC
FILTER
(20) (19)
(14)
(7)
AVDDL
AGNDL
AGND
DGND
TX-NR1000
(11) VMIDR
LRCLK
1
28
2
27
DIN
BCKIN
3
26
4
25
CLKO
XTI
5
24
(13) VOUTR
6
23
XTO
7
22
DGND
Top View
8
21
DVDD
9
20
AVDDR
(16) VOUTL
10
19
AGNDR
11
18
NMIDR
12
17
MODE8X
13
16
VOUTR
14
15
AGND
(18) VMIDL
ML/12S
MC/DM1
MD/DM0
MUTEB
MODE
CSBIWO
RSTB
ZERO
AVDDL
AGNDL
VMIDL
DIFFHW
VOUTL
AVDD
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