Interface Diagram - LG U8290 Service Manual

5. BLOCK DIAGRAM

5.2 Interface Diagram

ANT.
RF200
SW
Module
Duplexer
UMTS RX
ANT_SEL0,1,2
GSM TX
Dual
DCS/PCS TX
PAM
GSM/DCS/PCS GSM/DCS/PCS
RX Rx SAW Filter
UMTS
UMTS
Tx SAW
PAM
Filter
HDET
UMTS
RFL6200 Rx SAW
Filter
U8290 Interface Diagram
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PA_RAMP
PA_EN
PA_BAND
VCO_EN
GSM
Dual
TXVCO
UMTS TX
TX_AGC_ADJ
UHF_VCO_EN
UMTS
Rx VCO
HDET
RFR6200
TX I/Q
RTR6250
RX I/Q
MSM6250
TRK_LO_ADJ
VCTCXO
19.2MHz