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[LG-E445] RF Block Diagram
2. RF Block Diagram
W900
DUPLEXER
Tx
Module
RF3237
Included
GSM PAM
TXEN
VRAMP
MODE
BS
VSW_EN
LGE Internal Use Only
W900
W850_W900_TX_IN
PAM
Coupler
Coupler
W1900_2100_TX_IN
W2100
W2100
DUPLEXER
PAM
PDET
RX_W1900_W2100_INN
RX_W1900_W2100_INP
RX_W850_W900_INN
RX_W850_W900_INP
GSM850_GSM900_TX
DCS_PCS_TX
PRX_GSM850_INN
PRX_GSM850_INP
LB
Rx SAW
PRX_GSM900_INN
PRX_GSM900_INP
PRX_GSM1800_INN
PRX_GSM1800_INP
HB
Rx SAW
PRX_GSM1900_INN
PRX_GSM1900_INP
MT6162
XO1/REFIN
TX_LB1
REFCLK1
CLK
DATA0
DATA1
EN
TX_HB3
RX_BBIP
RX_BBIN
PDET
RX_BBQP
RX_BBQN
LNA3N
LNA3P
TX_IN
TX_IP
LNA2N
TX_QN
LNA2P
TX_QP
TX_LB2
TX_HB1
LNA8N
LNA8P
LNA7N
LNA7P
LNA6N
LNA6P
VDD_18
VDD_28a
LNA5N
VDD_28b
LNA5P
GSM_PA_EN
GSM_PA_RAMP
ANT_SEL0
ANT_SEL1
ANT_SEL2
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Copyright © 2013 LG Electronics. Inc. All right reserved.
6. BLOCK DIAGRAM
VCTCXO
AFC
26MHz
SYSCLK
CLK26M
BSI1_CLK
BSI1_CLK
BSI1_DATA
BSI1_DATA
BSI1_CS1
BSI1_CS1
BSI1_CS0
BSI1_CS0
UMTSRX_IP
DL_I_P
UMTSRX_IN
DL_I_N
UMTSRX_QP
DL_Q_P
UMTSRX_QN
DL_Q_N
GSM_UMTSTX_IN
UL_I_N
GSM_UMTSTX_IP
UL_I_P
GSM_UMTSTX_QN
UL_Q_N
GSM_UMTSTX_QP
UL_Q_P
PA_ON_W850_W900
BPI_BUS12
PA_ON_W1900_2100
BPI_BUS10
PA_R0
VM0
PA_R1
VM1
RF_TEMP_ADC
Thermistor
AUX_IN3
+1V8_VRF_MTK
+2V85_VRF_MTK
MT6329
PMIC
BPI_BUS5
APC
BPI_BUS0
BPI_BUS1
BPI_BUS2
Only for training and service purposes
MT6575
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Troubleshooting
