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KX-TG9331CT/KX-TG9332CT/KX-TG9333CT/KX-TG9334CT/KX-TGA931CT
7.5.
Schematic Diagram (Handset_Main)
RF circuit
RXI
TXO
BCLK
TX_DATA
SLOT_CTRL
RX_DATA
RF_POWER
RADIO_EN
RF_RSTN
SYN_DATA
SYN_EN
SYN_CLK
SYN_OUT
V_PA
V_RF
3.1V
ANT1_a
ANT1_HOT1
ANT1_HOT2
ANT1_b
ANT1_HOT3
ANT1_HOT4
ANT2
ANT2
ANT1_GND
ANT2_GND
BACK
3.1V
Charge pump for
LCD back light
DOWN
MENU
*C564
K0.1
NEXT
3.1V
*RA551
*RA552
330
NC
*Q562
*Q563
Q561
NC
KEY_BACKLIGHT
LCD_BACKLIGHT
ANT_LED
(Amber)
(Amber)
(Amber)
NC: No Components
BCLK
R540
NC
C540
K0.1
TX_DATA
SLOT_CTRL
RX_DATA
RF_POWER
RF control line
RF_RSTN
SYN_DATA
Flash memory for booting
SYN_EN
SYN_CLK
1
8
SI
SO
SYN_OUT
2
7
SCK
GND
3
6
*RESET
VCC
4
5
*CS
*WP
IC546
NC
TX_EN
FLASH
LEFT
TALK
SP
*
7
4
1
0
8
5
2
UP
SYA
9
6
3
TE
HOLD
RIGHT
OFF
PAUSE
White_LED
26
RADIO_EN
27
HEAD_DET
28
GND6
29
VCC1
SYN_EN
30
SYN_EN
SYN_CLK
31
SYN_CLK
SYN_DATA
32
SYN_DATA
33
NC4
34
TX_EN
35
NC5
RX_DATA
36
RX_DATA
37
NC6
38
CHG_DET
39
NC7
40
LCD_BACK_LIGHT
41
NC8
42
CHG_CTL
KIN_5
43
NC9
DB4
44
DB4
DB5
45
DB5
KIN_4
DB6
46
DB6
DB7
47
DB7
48
GND7
KIN_3
49
VCC2
RESETB
50
RESETB
KIN_2
KIN_1
CI
C573
K0.1
R573820K (1%) R572
430K (1%)
LCD_BACKLIGHT
22
DSP Part (control circuit)
RST
X501
13.824MHz
R501
SPPN
VCC4
SPN
SPP1
IBAT2
HSM
VCCA
GND10
MICBIAS
MIM
MIP
VREF
IC501
IBAT1
PDN
GND9
EE_WP
UART_RX
UART_TX
EE_SDA
EE_SCL
FB2
FB1
KIN_5
KIN_4
KIN_3
TCK
TMS
TDI
TDO
E
C
R542
2.2k
R541
10k
Parameter saving EEPROM
(1)
(2)
R525
NC
(3)
1M
(4)
100
99
98
97
96
95
94
93
92
91
90
(5)
89
88
87
86
85
84
83
82
81
80
79
78
77
76
EEPROM
Writing
protection TR
(6)
B
Q543
(7)
(8)
(9)
(10)
(11)
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