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39 SCHEMATIC DIAGRAM (CORDLESS HANDSET)
X1
10.368MHz
+1.8V
IC1
1 P3_7/PD7
2 P3_1/PD1
3 P3_5/PD5
4 PD_4/PD4
5 P3_3/PD3
6 P3_2/PD2
7 VDD
8 VSS
9 RFCLK
2 P3_1/PD1
3 P3_5/PD5
4 PD_4/PD4
5 P3_3/PD3
6 P3_2/PD2
7 VDD
8 VSS
9 RFCLK
10 VDDRF
11 VSSRF
12 Xtal1
13 CAP
14 AVS
15 AVD
16 RSSI
17 RDI
18 CMPREF
19 TDO
20 LE
11 VSSRF
12 Xtal1
13 CAP
14 AVS
15 AVD
16 RSSI
17 RDI
18 CMPREF
19 TDO
20 LE
21
SO
22
SK
23
DAC/ADC2
24
P3_6/PD6
25
UTX/P0_0
26
URX/P0_1
27
JTIO/P0_2
28
PCM_FSC1/P0_3
29
PCM_FSC0/P0_4
30
PCM_CLK/P0_5
31
PCM_DOUT/P0_6
32
PCM_DIN/P0_7
33
VDDIO
34
VSS
35
INT0n/P1_0
36
INT1n/P1_1
37
INT2n/P1_2
38
39
40
41
SCL2/P3_0
42
SDA2
43
VSS
44
VDD
45
P2_0/PWM0
46
P2_!/PWM1
47
P2_2/ADC0
48
P2_3/ADC1
49
P2_4/SCL1
50
P2_5/SDA1
51
P2_7/DC_CTRL
52
DC_I
53
P1_6/PON/INT6n
54
P1_7/CHARGE/INT7n
55
P2_6/stop_charge
56
VABT3/RINGING
57
DC_stab
58
DC_Sense
59
AVS_sense
60
ADC3
61
62
63
64
VBAT2
65
VBAT1
66
AVS2
67
AVD2
68
LSR+/REF
69
LSR-/REF
70
LSR_HS/CIDIN-
71
VREF_HS/CIDOUT
72
MIC-
73
VREF-
74
VBUF
75
AGND
76
MIC+
77
VREF+/CIDIN+
78
RSTN
79
80
VSS
R19
N.M
C7
10P
R20
1K
C6
N.M.
J2
1
BATTERY-
J1
1
BATTERY+
F1
L1
47uH
R1
0.1R/O.1W
D1
R3
180K(1%)
R2
68K(1%)
C1
330U/6.3V
Q2
Q3
R4
15K
C2
10u/6.3v
C3
100n
AG
J4
1
CHARGE-
J3
1
CHARGE+
R5
470R
R6
10K
R7
220K
R8
N.M.
R9
5.6K
R11
10K(1%)
R10
20K(1%)
C4
10P
+2.7V
+1.8V
S1
POWER
R13
N.M.
+2.7V
LED1
LED4
LED5
LED6
LED7
LED8
GREEN
R14
33R
R15
10R
+4V
+4V
R18
120R
R17
47R
R21
1K
GND
URX
UTX
BATT
C8
220n
R24
470K
C9
68n
R43
0.22R/0.1W
C18
1000P
C27
1u
C28
1u
C29
1u
C30
1u
C33
470n
C32
470n
C31
470n
C34
470n
C35
470n
+2.7V
R26
100R
R25
330R
100n
C21
C39
1u
R46
5.6K
R47
5
.6K
R48
33R
C40
10u/6.3v
C5
10u/6.3v
100n
C20
100n
C24
100n
C22
100n
C23
100n
C19
C52
1
00n
+2.7V
C57
330U/6.3V
R57
68
C58
100n
CN2
1
CS2
2
RESET
3
A0
4
SCL
5
SI
6
VDD
7
DSS
8
VOUT
9
CAP3+
10
CAP1-
11
CAP1+
12
CAP2+
13
CAP2-
14
V1
15
V2
16
V3
17
V4
18
V0
C59
1U
Q7
LED9
R59
56R
X1
JTAG
R60
1k
R61
10k
R63
10k
R64
10k
C71
N.M.
C72
N.M.
C68
6
8n
C37
6
8n
Q1
G
S
D
R12
39K
L4
10uH
R68
N.M.
R67
N.M.
R69
N.M.
R70
N.M.
C74
100n
C73
100n
D3
N.M.
N.M.
L5
10uH
LED2
TP10
TP11
TP12
TP16
Q4
D6
Q9
Q10
Q11
R73
560k
Q5
R72
1K
D7
LED10
RED
10P
C90
10P
C91
100P
C93
100P
C94
C96
N
.M.
R81
0
R82
N.M.
D9
N.M.
RXDSG
PAON
PSEL
PSEL
SYRI
SYEN
TXDA
RXDA
RSSI
SYDA
SYCL
PANEL
SCL
P0
PWM1
COL1
COL2
COL3
COL4
COL5
ROW0
ROW1
ROW3
ROW2
COL0
RESET
A0
CS2
RESET
SCL
RESET
CS2
SI
SCL
SI
P3
P2
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(14)
(15)
(16)
(17)
(18)
(19)
(19)
(20)
(21)
Charge Current
115KHz
2.7V DC
4.0V DC
1.8V DC
RX-AF (Speaker phone)
RX-AF (Handset)
TX-AF
3.7V
3.6V
0V
0V
1.8V
0.9V
0.9V
0.9V
0V 0.9V
1.5V
0.9V
0.9V
1.5V
1.8V
2.7V
0V
1.8V
0V
0V
1.8V
0V
0V
0V
1.8V
1.8V
2.7V
2.7V
0V
Beep signal
Charge LED
10.368MHz
840mVp-p
to LCD Module
1sec cycle
2.8V
(When ON Charge)
0V
1.8V
120
KX-TCD540RUM / KX-TCA154RUM / KX-TCD540RUT / KX-TCA154RUT
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