LG KF700Q Service Manual page 153

6. BLOCK DIAGRAM
Control signal
Con trol signal
UMTS PA_CTL signal
GSM PA_CTL signal
GSM_PA_BAND
GSM_PA_EN
GSM_PA_RAMP
RF Tranceiv er_CTL sign al
SSBDT_RTR
FEM_CTL signal
ANT_SEL 0,1,23
LGE Internal Use Only
PA_ON0 UMTS850 Power Am p. En able
PA_ON1 UMTS2100 Power Amp. Enable
DCS or PCS /GSM Mode Selection
Power Amp. Gain Control Enable
Power Am p. Gain Con trol
TX_ON RF Enable Signal
Bidirec tional SSBI Data
Ant S witch Module Mod e Selection
- 154 -
Description
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Com ment
UMTS850,
UMTS210,
GSM850TX/RX
GSM900Tx/Rx,
DCS Tx/Rx,
PCS Tx/Rx