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TX-AF
FREQ 10.368MHz
TX-DATA
RX-DATA
RING
10.368MHz burst
+2.5V peak
70ns 700ms
1V
RX-AF
0V ON-HOOK
+2.8V OFF-HOOK
+2.8V OFF-HOOK
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(10)
(11)
(12)
(13)
(14)
(15)
(8)
(9)
KX-TCD650RUC/RUF SCHEMATIC DIAGRAM (BASE UNIT)
C68
10pF
TP78
IC9
8
VCC
1
A0
3
A2
4
GND
6
SCL
5
SDA
7
WP
2
A1
R41
33K
33K
C71
10p
TP65
R54
18K
18K
R74
C70
10pF
D16
C9
N.M.
C67
3p3
R57
22R
22R
ANT202
Antenna
1
2
2
TP93
TP117
TP94
10p
R2
390R
C4
100n
100n
C49
C43
C39
C19
C38
10p
TP104
R44
10K
T11
E
C
B
R70
5K6
T13
E
C
B
C55
10n
TP201
C51
10pF
R13
56R
R59
390R
R73
C20
10p
+3.3V
TP101
R122
N.M.
R56
56R
56R
C31
C69
10pF
68pF
C60
470pF
C36
C33
N.M.
X1
10.368MHz
R25
N.M.
C34
C58
10n
C122
N.M.
R46
1K8
R16
1K0
C18
330p
ANT201
Antenna
R47
27K
27K
J103
C27
4.7nF
C74
N.M.
R60
TP107
C47
2.2uF
D10
30V
C10
10p
J104
R51
1K
R8
N.M.
R58
N.M.
TP69
TP186
J101
+2.65v
T6
E
C
B
TP67
C53
33pF
R45
10K
C28
R55
100K
J102
C11
10p
D3
4V7
C57
10n
TP97
10p
C59
10n
TP75
D4
4V7
4V7
(IP)
(IP)
(IP)
(IP)
(OP)
(OP)
(OP)
(OP)
(IP)
(IP)
(IP)
(IP)
(OP)
(OP)
(IP)
(IP)
(IP)
(IP)
(IP)
(OP)
(OP)
(IP)
(IP)
(OP)
IC8
I2CLK
65
I2DAT
64
SUPEEP
63
RESETQ
24
MODE
66
VBACK
69
VDDA
35
VSSA
36
VDD
1
VDD
22
VDD
61
VDD
75
VDD
84
VSS
2
VSS
23
VSS
62
VSS(T_DSPCLK)
73
VSS
83
MPCINP
44
TONE
74
AD3
45
AD4
46
DSPIN/P1.0
76
DSPOUT/P1.1
77
DSPCLK/P1.2
81
DSPFRM/P1.3
82
PO.0
86
PO.1
87
PO.2
88
PO.3
89
PO.4/TXD
90
PO.5/RXD
91
PO.6
92
PO.7
93
D0
3
D1
19
D2
18
D3
98
D4
97
D5
96
D6
95
D7
94
OERAQ
17
WRRAQ
16
CSRAQ
15
CSRDQ
85
A0
4
A1
5
A2
6
A3
7
A4
54
A5
55
A6
56
A7
59
A8
78
A9
79
A10
48
A11
58
A12
60
A13
80
A14
47
A15
70
BSEL0(A16)
71
BSEL1(A17)
72
PX.2
53
PX.1
52
PX.0
51
PX.3
57
ADREF
42
ADRSSI
43
TXDA
14
RXDA
10
PADN(TXSWON)
20
DRON
8
RXDSG
9
SYDA
12
SYCL
13
SYEN
11
SYRI
21
ANT1
99
ANT2
100
R2
67
R1
68
MICN
41
MICP
40
HOP
38
HON
37
LDAD
29
VSSD
28
XTAL
30
VDDLR
33
LRB
34
VDDPM
25
BREF
39
NC
26
NC
31
NC
27
NC
32
NC
49
NC
50
C63
3p3
B1
R72
BUZ1
2
1
B0
C73
N.M.
TP109
R62
TP99
C29
N.M.
C64
68n
R15
390R
TP120
L5
10uH
K1
TP103
TP3
TP57
10p
TP98
C56
10n
C35
N.M.
N.M.
N.M.
TP70
TP202
TP108
C48
1uF
IC1
RFMODULE
25
SYRI
34
PAON
24
DRON
21
RXDSG
20
RXDA
13
TXDA
18
TXDA
37
RF2
44
RF1
11
RSSI
6
3.3V
7
3.3V
2
GND
12
SYRI
17
SYEN
14
SYCL
15
SYDA
1
ANT1
35
ANT2
C8
N.M.
TP66
C54
470p
TP1
+2.65V
B2
C81
10p
C79
100n
C66
10n
R43
150R
C61
N.M.
C80
100pF
C62
100nF
TP119
J100
C65
10n
(IP)
(IP)
(IP)
IC5
N.M.
10
A16
11
A15
12
A12
13
A7
14
A6
15
A5
16
A4
17
A3
18
A2
19
A1
20
A0
21
D0
22
D1
23
D2
25
D3
26
D4
27
D5
28
D6
29
D7
30
CE
31
A10
32
OE
1
A11
2
A9
3
A8
4
A13
5
A14
6
A17
9
NC
7
WE
24
GND
8
VCC
R49
8K2
8K2
A[12]
A[10]
A[16]
CSRDM
CSRDM
MODE_SEL
MODE_SEL
A[16]
A[15]
PULSE_DIAL
A[0]
A[8]
LRB
LRB
A[1]
OERAQ
OERAQ
1
A[8]
LINE_C
LINE_C
A[17]
A[14]
A[9]
A[5]
HOOK
CHARGE_PULSE
A[9]
A[17]
A[00-17]
A[3]
A[14]
A[10]
A[7]
A[15]
A[2]
RING
A[7]
REV_PDL
A[13]
WR
WR
+2.65V
+2.65V
+2.65V
SCL
A[4]
CLIP_STATE
A[5]
SDA
A[13]
A[0]
A[1]
A[12]
TXAF
TXAF
TXAF
A[6]
A[11]
A[2]
A[3]
A[4]
A[3]
A[4]
RXAF
RXAF
A[6]
VUNREG
VDDLR
TXAF
TXAF
A[11]
Hardware Version Resistor
PAGE
18K
10R
2K2
10K
390R
2u2/50V
470nF
72
KX-TCD650RUC / KX-TCD650RUF
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