LG CU920 - Off-Chip RF Components

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