LG -P768 Service Manual page 128

RF Block Diagram_P768
4. RF Block Diagram_U2(EU)
Coaxial
Connector
Mobile Switch
(HIROSE)
TXL
GSM_LB_TX
TXH
GSM_HB_TX
SP8T, ASM
RF6361A
(RFMD
)
TRX3
GSM1800_RX
TRX6
B1
TRX4
B2/GSM1900
TRX2
B5/GSM850
TRX1
B8/EGSM
LGE Internal Use Only
B1 Rx
Diversity
PAM DCDC
SAW
RF6561
(RFMD)
2140Mhz
VCMOS VRAMP
PA_RAMP
CP_OUT
VBAT_PAM
VCC
LB_RFIN
HB_RFIN
PAM
RF6261B
RF_OUT
PA_RF
(RFMD)
FB_AM
PA_POW_DET
TX_B1 TX_B2 TX_B5 TX_B8
RX_GSM1800_1
ANT_GSM1800 RX_GSM1800_M1X
RX_GSM1800_2
RX_GSM1800_M1
Duplexer Bank
(TAIYO YUDEN)
RX_B1_H2X
RX_BAND1_1
ANT_Band1
RX_BAND1_2 RX_B1_H2
RX_BAND2_1
RX_B2_M2X
ANT_Band2
RX_BAND2_2
RX_B2_M2
RX_BAND5_1
RX_B5_L2X
ANT_Band5
RX_BAND5_2
RX_B5_L2
RX_BAND8_1
ANT_Band8
RX_B8_L1X
RX_BAND8_2
RX_B8_L1
PMU
RF6590
(RFMD)
VBAT 1.2V 1.8V
L7
RD_HX
RD_B1_HX
AFC0_DAC B10
L6 RD_H
RD_B1_H
PA_PAMP
Transceiver
PM_L
TX_L
PM_H
PMB5712
TX_H
(Infineon)
PA_RF
PA_POW_DET
H2
RX_M1X
G2
RX_M1
SYS_CLK_EN F12
REF_CLK_EN E13
L1
RX_H2X
K1 RX_H2
DI3_RX_DAT C13
J1
RX_M2X
DI3_RX_DATX D13
RX_M2
H1
DI3_TX_DAT C12
G1
RX_L2X
DI3_TX_DATX D12
F1 RX_L2
F2 RX_L1X
RX_L1
E2
- 128 - Copyright © 2012 LG Electronics. Inc. All right reserved.
6. BLOCK DIAGRAM
VCTCXO
2.65V 2.85V
1XXA26000FBA
(DAISHINKU, 26MHz)
1 VCONT
XO A11
3 OUT
XMM6260
(Infineon)
SYS_CLK F13
P12 SYS_CLK
DI3_SYS_CLK
U9 SYSCLKEN
DI3_SYS_CLK_EN
K3 REF_CLK_EN
DI3_REF_CLK_EN
U7 DI3_RX_DAT
DI3_RX_DAT
U8
DI3_RX_DATX
DI3_RX_DATX
DI3_TX_DAT
T7
DI3_TX_DAT
T8 DI3_TX_DATX
DI3_TX_DATX
RESET_N XRESET_N
Only for training and service purposes