LG -E455 Service Manual page 194

[LG-E455] RF Block Diagram
3. RF Block Diagram
W900
DUPLEXER
Tx
Module
SKY77554
Included
GSM PAM
TX_LB_IN
TX_HB_IN
RX1
RX2
TX_EN
VRAMP
MODE
BS
VSW_EN
LGE Internal Use Only
Coupler
W900
PAM
W2100
W2100
PAM
DUPLEXER
Coupler
GSM850_GSM900_TX
DCS_PCS_TX
Rx_GSM_850
GSM850/
GSM90
SAW
FILTER Rx_GSM_900
GSM850/ Rx_DCS
GSM90
SAW
Rx_PCS
FILTER
GPA_PA_EN
GPA_PA_RAMP
MT6162
XO1_REFIN
TX_LB1
REF_CLK
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_1a
VDD_28a
LNA5N
VDD_28b
LNA5P
ANT_SEL0~2
- 194 - Copyright © 2013 LG Electronics. Inc. All right reserved.
6. BLOCK DIAGRAM
MT6575
VCTCXO
AFC
26MHz
CLK26M
BSI1_CLK
BSI1_DATA
BSI1_CS1
BSI1_CS0
DL_I_P
DL_I_N
DL_Q_P
DL_Q_N
UL_I_N
UL_I_P
UL_Q_N
UL_Q_P
PA_ON_W850_W900 BPI_BUS12
PA_ON_W1900_W2100 BPI_BUS10
PA_R0 VM0
PA_R1 VM1
Thermistor AUX_IN3
MT6329
PMIC
BPI_BUS5
APC
BPI_BUS0
BPI_BUS1
BPI_BUS2
Only for training and service purposes