Off-Chip Rf Components - LG CU920 Manual

3.5 Off-chip RF Components

3.5.1 Front-End Module
TERMlNAL CONFIGURATION
Terminal NO.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
CONTROL LOGIC
Mode
GSM850/900 Tx
GSM1800/GSM1900 Tx
GSM850 Rx
GSM900 Rx
GSM1800 Rx
GSM1900 Rx
UMTS1
UMTS2
Idle
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Only for training and service purposes
Terminal Name
GSM1800 Rx
GSM1800 Rx
GSM1900 Rx
GSM1900 Rx
GSM900 Rx
GSM900 Rx
GSM850 Rx
GSM850 Rx
GND
Vdd
Vc4
Vc3
Vc2
Vc1
Vc1 Vc2
1.8-3.0V 1.8-3.0V
1.8-3.0V 0-0.2V
0-0.2V 0-0.2V
0-0.2V 0-0.2V
0-0.2V 1.8-3.0V
0-0.2V 1.8-3.0V
1.8-3.0V 0-0.2V
1.8-3.0V 0-0.2V
0-0.2V 0-0.2V
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3. TECHNICAL BRIEF
Terminal NO.
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22) GSM1800/1900 Tx
(23)
(24)
(25)
(26)
(27)
(28)
Vc3
0-0.2V
0-0.2V
0-0.2V
1.8-3.0V
1.8-3.0V
0-0.2V
1.8-3.0V
1.8-3.0V
0-0.2V
Terminal Name
UMTS1
UMTS2
NC
GND
ANT
GND
GND
GND
GND
GSM850/900 Tx
GND
GND
GND
Vc4 Vdd
0-0.2V 2.4-3.0V
0-0.2V 2.4-3.0V
0-0.2V 2.4-3.0V
0-0.2V 2.4-3.0V
0-0.2V 2.4-3.0V
0-0.2V 2.4-3.0V
0-0.2V 2.4-3.0V
1.8-3.0V 2.4-3.0V
0-0.2V 0-0.2V
LGE Internal Use Only