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(1)
(2)
(3)
(4)
(5)
+2.65V DC
+2.65V
(6)
(7)
(8)
(9)
(10)
VBACK
R33
(11)
NC
(12)
(13)
OV ON-HOOK
DC OFF-HOOK
+9.8V
TP50
R12
0
C8
NC
Q5
NC
Q4
R14
NC
NC
R11
R15
NC
NC
C21
D10P
R32
56
TX-AF
TP187
D5
Q8
FREQ 10.368MHZ
1V
33 PX.0
VSSO
16
34 PX.1
VDDPM
15
35 PX.2
RESETQ
14
36 PX.3
VSS
13
37 VDD
(7725:R33 N.M./R52 0ohm)
VDD
12
(7795:R33 1K/R52 N.M.)
38 VSS
SYRI
11
39 SUPEEP
PAON
10
IC2
40 I2DAT
TXDA
9
41 I2CLK
SYCL
8
42 MODE
SYDA
7
43 R2
45:VBACK/P1.5
SYEN
6
44 R1
46:VSS(DSPCLK)
RXDA
5
45
47:P1.4(TONE)
RXDSG
4
46
DRON
3
47
VSS
2
48 VDD
VDD
1
+2.65V
S1
R58
3
4
2
1
10K
OV ON-HOOK
DC OFF-HOOK
+3.9V
Q6
C79
NC
R18
R21
C80
C13
3.9K
100K
K1.0
0
R55
NC
RX-AF
+2.65V
KX-TCD430FXB/FXC/FXW SCHEMATIC DIAGRAM (BASE UNIT)
R25
390
Q7
R27
2.2K
A201
1
C54
C6P
R66
39
R67
39
TP188
TX-DATA
R38
33
RX-DATA
L4
2.7nH
R90
0
A202
1
DA1
C58
C2P
C83
NC
1
GND
28
GND
2
GND
VCC_PA
27
3
GND
26
GND
4
PAON
25
TXDA
24
5 RSSI
PSEL
23
6 VCC_OC
GND
IC3
7 GND
GND
22
8 SYCL
GND
21
9 SYDA
RXDA
20
10 SYEN
GND
19
11
GND
GND
18
TP1
L1
4.7uH
10.368MHZ burst
peak
+3.1V
: No Components
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