Block Diagram; Gsm & Umts Rf Block - LG U970 Service Manual

6. BLOCK DIAGRAM

6. BLOCK DIAGRAM
6.1 GSM & UMTS RF Block
WCDMA2100
WCDMA
2100
Duplexer
FRONT
END
MODULE
SP8T
GSM900/1800/1900
PMIC
Buck
Converter
WCDMA
RX SAW
WCDMA
WCDMA
Coupler
PAM TX SAW
EGSM
TX SAW
GSM
FILTER
Quad
DCS/PCS
PAM
[Fig 2.1] U970/KU970 RF Functional Block Diagram
BT RF MODULE
BT_SBST/CK/DT
SYNC_DET_TX_EN
XTAL_IN
RX_BB_TX_BB
VCTCXO
19.2MHz
VDDA TCXO
WMIX_INM
WMIX_INP
WLNA_OUT
V_TUNE1
V_TUNE2
PLL2 PLL1
HB_RF_OUT1
VCONTROL
PWD_DET_IN
RTR6275
LB_RF_OUT1
HB_RF_OUT2
EGSM_INP
EGSM_INN
DCS_INP
DCS_INN
DAC_REF
GPCS_INP
GPCS_INN
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Bluetooth RF
BT_SBST/CK/DT
BT_RX_TX_N
BT_DATA
TCXO
TCXO_EN
TRK_LO_ADJ
SBDT PM_SBDT
MSM6280
TX_AGC_ADJ
SBDT SSBDT_RTR
RF_ON TX_ON
RX_IQ RX_IQ
TX_IQ
TX_IQ
DAC_REF