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6-3. BLOCK DIAGRAM (2/2)
VPOUT1
96 DTIN
RCS
109 RCS
TX MAIN
A
RINFO
107 RINFO
SECTION (1/2)
DILRCK
98
LRCKIN
VPOUT2
152 151 153 139 140
TX MAIN
B
CONTROL
SECTION (1/2)
BUS
43 20 19 18
4
IC23
INV.
2
42
P22/SCK1
• Signal Path
: LINE(ANALOG)
: LINE(DIGITAL)
IC12
DIAT
RF LEVEL
BUFFER
DAAOUT
5
Q201
73
OSCI
X2
24.576MHz
OSCO
71
VOCT
120
3
OPT VCC
2
3
5
PLVAR
112
1
4
6
5
4
PRRET
113
IC9
104 97 106
BUFFER
IC5
DAC
SDATA
3
4 5
6
8 9
17
16 46 47 37
38
39 40
41
IC18
(2/2)
SYSTEM
CONTROL
IC22
RV201
IF AMP
3
1
RV101
IC10
DC
VCO
BIAS
VCOOUT
VCOIN
12
FINB
PFDOUT
6
FINA
IC21
RV901
LEVEL
LPF
AOUT A-
19
6
7
AOUT A+
18
5
14
2
AOUT B-
1
15
3
AOUT B+
Q901,902
10 1
SRAM
VDD
IC905
VDD
+1.8V
4
1.8V
REG.
REG
3.3V
86
P30
OPT
B+ SWITCH
VCC
Q901,902
SW
5.0V
IF AMP
VCC
MAPOW
89
P33
IFPOW
P34
90
19
19
TX LED
LED DRIVER
D5-8
Q354,351,357
LED DRIVER
D9-12
Q355,352,358
LED DRIVER
D13-16
Q356,353,359
LED DRIVER
D17-20
Q362,361,360
IC901
IC902
PRE DRIVER
HEADPHONE AMP
5
7
5
3
1
3
VCC
VCC
8
MUTE
IC903
+3.3V
4
2
REG.
UCON VDD
1
IC904
2
REG 9V
+3.3V
4
2
REG.
1
IC906
IF 9V
+5.0V
2
1
REG.
B+ SWITCH
Q901,902
DP-IF8000
J901
7
PHONES
6
2
1
8
RIPPLE
<SW5.7V
FILTER
Q903
IC907
+3.9V
1
4
REG.
2
IC902
J901
+9V
2
1
DC IN 9V
REG.
!
IC901
+9V
2
1
REG.
4
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