LG -D120 Service Manual page 126

[D120] RF Block Diagram
W850 or W850
W900
DUPLEXER
W2100 or
W1900
DUPLEXER
Tx
Module
SKY77589 SKY77589
Included
GSM PAM
TX_LB_IN
TX_HB_IN
DCS_PCS_RX
TRX2
TRX3
GSM850_GSM900_RX
TX_EN
VRAMP
MODE MODE
BS1
BS2
LGE Internal Use Only
PAM
(SKY77758)
GSM850_GSM900_TX
DCS_PCS_TX
Balun
FILTER
GSM_PA_EN
GSM_PA_RAMP
ANT_SEL0~2
- 126 -
MT6166
XTAL1/2 XTAL1/2
3G_TX_LB
XO1
CLK
DATA0
3G_TX_HB
DATA1
DATA2
EN
3G_RX_LB_P RX_BBIP
3G_RX_LB_N RX_BBIN
RX_BBQP
RX_BBQN
3G_RX_HB_P
TX_IN
3G_RX_HB_N
TX_IP
TX_QN
TX_QP
2G_TX_LB
2G_TX_HB
3G_RX_HB_P
+1V825_MTK_VRF
3G_RX_HB_N
+1V8_MTK_VIO
3G_RX_LB_P
+2V8+MTK_VTCXO
3G_RX_LB_N
Copyright © 2014 LG Electronics. Inc. All right reserved.
5. BLOCK DIAGRAM
MT6577
Crystal Crystal
26MHz
CLK26M
BSI_CLK
BSI_DATA0
BSI_DATA1
BSI_DATA2 _
BSI_EN
DL_I_P
DL_I_N
DL_Q_P
DL Q N DL_Q_N
UL_I_N
UL_I_P
UL_Q_N
UL_Q_P
3G_PA_LB_EN 3G PA LB EN BPI BUS9 BPI_BUS9
3G_PA_HB_EN BPI_BUS11
PA_MODE_SEL VM0
MT6323
PMIC
BPI_BUS3
APC
BPI_BUS0
BPI_BUS1
BPI_BUS2
Only for training and service purposes