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6. BLOCK DIAGRAM
Main RF signal
Control signal
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Main RF signal
Description
Comment
GSM 850 TX
GSM 850 TX RF Signal
DCS TX
DCS TX RF Signal
PCS TX
PCS TX RF Signal
GSM 850 RX
GSM 850 RX RF Signal
DCS RX
DCS RX RF Signal
PCS RX
PCS RX RF Signal
TX_I/Q
I/Q for Tx of RF
RX_I/Q
I/Q for Rx of RF
Con trol sign al
Description
Com ment
GSM PA_CTL signal
GSM_PA_BAND
DCS or PCS /GSM Mode Selection
GSM_PA_EN Power
Amp.
Gain
Control
Enable
GSM_PA_RAMP wer
Am p.
Gain
Con trol
RF Tranceiv er_CTL sign al
TX_ON RF
Enable
Signal
SSBDT_RTR
Bidirec tional
SSBI
Data
FEM_CTL signal
ANT_SEL 0,1,2
Ant S witch Module Mod e Selection
GSM850Tx/Rx,
DCS Tx/Rx,
PCS Tx/Rx
Po
Содержание KE990 - Viewty Cell Phone 100 MB
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