STR-DH550/DH750
46
IC2203 LC89075WA-H (MAIN BOARD (5/7))
PVDD
RXIN1
RXIN2
RXIN3
RXIN4
RXIN5
RXIN6
RXIN7
RXIN8
DGND
DVDD
RXOUT
DGND
RXIN1A
RXIN2A
RXIN3A
VREF
AGND
AVDD
ADINL
ADINR
DGND
DVDD
DSTATE
INTB
SO
SI
SCK
CSB
XMODE
DVDD
DGND
ADC data II C bit info
2ch data II DSD II S/PDIF
LR clock II DSD II S/PDIF
Bit clock
Master clock
5,6/6ch data
3,4/6ch data
1,2/6ch data II DSD
2ch data II DSD
II Non-PCM
II Data mute
II Error
LR clock II DSD
LR clock II DSD
II 7,8/8ch data
Bit clock
Bit clock
II 5,6/8ch data
Master clock
Master clock
MUX
15.3
MUX
(4x5):4
MUX
(4x6):4
DIR
Error
MPIN4 (Error)
MPIN5 (Data mute)
MPIN6 (Non-PCM)
Output
Data
Level
Detector
Micro
Controller
interface
Oscillation
Amplifier
Power-on
Reset
Data mute
C bit info
Clock & data
Non. PCM
S/PDIF
S/PDIF
ADC
Stereo
ADC
II 3,4/8ch data
II 1,2/8ch data
Group: C (Input)
Group: B (Input)
Group: A (Input)
II S/PDIF
II S/PDIF
Group: C (output)
ADC
DIR Group: A
Group: D
Group: C
Group: B
LPF
PGND
MCKIN
BCKIN
LRCKIN
DATAIN
MPIN1
MPIN2
MPIN3
MPIN4
MPIN5
MPIN6
MCKOUT
BCKOUT
LRCKOUT
DATAOUT
DGND
DVDD
MPOUT1
MPOUT2
MPOUT3
MPOUT4
ERRF
MUTEB
NPCMF
MPIO1
MPIO2
MPIO3
MPIO4
XMCK
XOUT
XIN
Group: C (Input)
Group: D (Input)
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
PGA
PGA
ATT
Group: B
Group: C
Group: D
Group: A
DIR
Group: B
Group: C
Group: D
Group: A
ADC
ADC data
Group: B data
Group: C data
Group: D data
Group: A data
DIR data
IC2204 TC74VHC393FT (ELK) (MAIN BOARD (5/7))
14
13
12
11
10
9
8
1
2
3
4
5
6
7
Q
A
Q
B
Q
C
Q
D
A
CLEAR
Q
A
Q
B
Q
C
Q
D
A
CLEAR
RDA
CKA
Q1A
Q2A
Q3A
Q4A
GND
Q4B
Q3B
Q2B
RDB
Q1B
CKB
VCC
