Read Panasonic KX-UDS124CE Service Manual online
67
KX-UDS124CE
16.1.4.
IC401 (RFIC)
Pin No.
Terminal Name
I/O setting
Pull-Up/Down
Contents of Control
Remark
1
VCC_VCO
-
-
Not in use (OPEN)
2
PAEN
O
-
Not in use (OPEN)
3
ATST_p
O
-
RX LNA input
4
ATST_n
O
-
Output from DPDT switch
5
ANT_n
O
GND
Not in use
6
TRSW
O
-
Bidrectional RF signal
7
RXp
I
GND
Not in use
8
RXn
I
-
Bidrectional RF signal
9
TXp
O
-
Tx RF input to DPDT switch
10
TXn
O
-
TX Balun open-drain output p
11
TRSW_n
O
-
TX Balun open-drain output n
12
ANT
O
-
PA VCC (3.3V)
13
VCC_FE
-
V_RF
FE VCC (3.3V)
14
VDD_IF
-
-
Reference VDD (1.8V)
15
VCC_IF
-
V_RF
IF VCC (3.3V)
16
VDD_DIG_b
-
-
Reference VDD (1.8V)
17
VCC_DIG
-
V_RF
DIG VCC (3.3V)
18
RSTN
I
Pull-Down
Reset
19
VCC_IO
-
V_RF
IO VCC (3.3V)
20
TR_DATA
I/O
-
RF input/output data
21
RADIOEN
I
-
Radio enable
22
SLOT_CTRL
I
-
Slot control
23
SYN_DATA
I
-
Sync data
24
SYN_CLK
I
-
Sync clock
25
SYN_EN
I
-
Sync enable
26
SYN_OUT
O
-
Sync out
27
VDD_Dig_t
-
-
Reference VDD (1.8V)
28
DTEST
O
-
Not in use (OPEN)
29
DTST1
O
-
Not in use (OPEN)
30
REFIN
I
-
Clock input
31
VCC_DIV
-
V_RF
DIV VCC (3.3V)
32
VCC_PLL
-
V_RF
PLL VCC (3.3V)
GND_PLATE
-
-
Ground (0V)
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