40
KDC-BT6544U/BT6544UY
/BT7043U/BT742U
X32-6260-00 (2/3)
AO
AP
AQ
AR
AS
0V
0V
0V
3.3V
1.7V
1.7V
0V
1.5V
3.3V
0V
3.3V
0V
3.2V
3.2V
3.3V
0V
3.3V
1.2V
3.3V
0V
0V
1.5V
3.3V
1.5V
3.3V
0V
3.3V
0V
3.3V
0V
3.3V
0V
3.3V
0V
3.3V
0V
0V
3.3V
4.5V
3.3V
0V
4.5V
1.5V
4.5V
0V
2.6V
3.3V
IC1
IC6
IC7
IC9
Q6
Q5
Q3
D2
MECHANISM u-COM
LEVEL SHIFT
3.3V
5.0V
B.U1.5V/
REGULATOR
BU3.3V
A3.3V
REGULATOR
CONTROL
INVERTER
SIGNAL
B3.3V
OUTPUT
OUTPUT
D1.5V
TP95
DRVMUTE
TP94
CD REQ
TP69
BS REQ
TP70
BS GATE
TP71
BS DATA
TP72
BS BCK
TP73
BS LRCK
BUCK
TP74
SO
TP75
SI
TP91
RESET
TP98
ROM DET
TP102
TP83
BU1.5V
TP80
DVDD3
TP86
DGND
TP68
ZDET
TP92
PWE
TP93
B3.3V
TP115
SOC STOP
TP116
DATA SYS
TP117
REQ SYS
TP118
SOC RST
CP12 100
CP10 100
TP81
PON
X2
32.768
TP84 BU3.3V
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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
NC
DVCC3A
DVSS
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
CD PON
CD DRIVEMUTE
CO SRAMSTB
DSP REQ
DVCC3A
DVSS
NC
DSP RST
CE
NC
NC
NC
NC
NC
DVSS
DVCC1A
RVOUT2
RVIN2
RVIN1
RVOUT1
DVCC1B
DVSS
PWE
XT2
XT1
DVCC3B
BSIF ST REQ
NC
REQ S
MSTOP
MRST
USB D+
USB D-
AMO
CD LOE LIM SW
DVSS
D
ATA
M
D
ATA
S
CLK
CD SO
CD Si
CD CLK
IPOD SDA
IPOD SCL
BSIF BCK
BSIF DA
TA
BSIF GA
TE
DVCC3A
ROMCOR DET
NC
NC
NC
DVSS
CD REQ
BSIF ST REQ
BSIF GATE
BSIF DATA
BSIF BCK
BSIF LRCK
14
13
12
11
10
9
8
1
2
3
4
5
6
7
R98 22K
C102 0.01
22K
R95
R97 22K
22K
R96
100
R82
5
4
VIN
VOUT2
1
2
3
EN1
VSS
VOUT1
1
2
3
VIN
VSS
CE
5
4
VOUT
NC
8
7
6
VCC
WP
1
2
3
A0
A1
0.01
C32
R38 1K
R36 1K
0
22K
R30
R28 1K
R27 100
0.01
C28
0.01
C25
1
C27
10
C29
10
C26
2.2
R26
C24 0.01
C23 18P
R24 100
R23 22K
0.01
C21
22K
R19
22K
R57
R67 100
R68 100
R69 100
22K
R70
0.01
C38
3.3K
R66
0.01
C114
0.47
C3
C6 1
16.934MHz
X3
57
BUS2
BUS1
BUS0
VDD3
62
61
64
63
60
PIO7
59
58
BUS3
65
CDMON0
LO
51
VSS2
VDD1-2
54
56
55
PIO3
53
52
XVDD3
XVSS3
DVSS3L
XI
50
49
XO
48
47
46
CDMON1
CDMON2
Z DET
DVDD3L
DVDD3R
DVSS3R
43
45
44
42
41
RO
39
40
37
38
CP22 10K
PIO9
PIO10
PIO11
35
36
33
34
0.1
C9
10
C69
10
C71
1000P
C74
1000P
C73
1M
R115
680
R116
0.1
C75
0.1
C76
R112 4.7
R113 4.7
R119 10K
R120 10K
0.1
C77
TP67 IPF
TP66 DFCT
TP65 FOK
R
L
87
88
D1.5V
D3.3V
D1.5V
C12 0.01
22K
R41
2.2
R175
R176
2.2
10K
R117
10K
R118
71
92
93
94
5
28
2.2
R177
1K
R180
0.01
C31
22K
R33
28
29
1
2
3
100K
R25
22P
C22
kHz
5
24
23
94
93
92
22K
R63
89
88
87
86
84
100
R58
15K
R55
15K
R53
10
R52
10
R54
0
R10
0.01
C30
1K
R29
13
7
20
19
100
R59
1K
R21
1
3
2
4.7
R1
1
C4
1
C1
1
C7
10K
R4
2K
R3
1
C2
Q6
Q5
3.3K
R65
4.7
R2
BU1.5V
D1.5V
BU1.5V
BU3.3V
BU1.5V
BU5V
B3.3V-2
B3.3V
B3.3V
B3.3V
BU3.3V
BU3.3V
B3.3V
-2
B3.3V
-2
B3.3V-2
BU3.3V
BU3.3V
C5 1
AGND
AGND
IPOD RST
IPOD RST
90
91
100
R81
29
BU5V
BU5V
ZDET
ZDET
ZDET
A3.3V
A3.3V
AGND
D3.3V
A3.3V
D3.3V
D1.5V
D1.5V
A3.3V
71
AGND
B3.3V-2
R31
Q3
VCC
GND
79
80
1
4
4
2
3
3
1
1
6
7
7
7
4
4
8
8
11
10
10