Schematic Diagram (Base Unit_Rf Part) - Panasonic KX-TG2448BXF Service Manual

29 SCHEMATIC DIAGRAM (BASE UNIT_RF PART)

2.4GHz TX
2.4GHz RF
ANT
FL901
L909 L903
C911
1 3
3.9nH 3.3nH
J47P
2 4
2.4GHz RX
L902
10nH (PF)
L905
10nH
C983
K1000P
C990
K1000P
C984
J100P
C991
C5P
C938
1 TX
D10P
2
GND_TX
C918 L911
3
GND_RX
C5P 2.7nH
4
RX
C939
5 VCC_RF
D10P
6 VCC_IF2
TP_TESTP
C940
K0.01 7 TESTP
8 TESTN
TP_TESTN
L990
1uH(1005)
C992
J120P
2.5V
24
VCC_PLL2A
R940
VCC_PLL2B 23
4.7
22
RXEN
21
TXEN
IC901 R943
20
VCC_PLL1B
0
19
VCC_PLL1A
R941
18
VCC_DIG
10
17
TC_CTRL
R942
10
2.5V
KX-TG2448 SCHEMATIC DIAGRAM (Base unit_RF Part)
MOD_EN
VBATT2
SDIO
SDATA
SLE
SCLK
R919
TX_DATA
1K
R930
RX_GAIN
1K
R931
RX_EN
1K
TX_EN
R932
SHCTRL
1K
RX_DATA
R933
RF_RESET
330
RSSI
OSC_IN
GND
GND
NC: No Components