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2.3.3 Control Signal Interface
Power is provided to the LUM850T / LUM900T through Power pins
that range from 3.0V to 3.6V.
Symbol
Parameter
+3.3Vaux Supply Voltage
V
Input High Voltage
IH
V
Input Low Voltage
IL
I
Input Leakage Current
IN
I
Output Leakage Current
LKG
Notes:
1. Applies to PERST# and W_DISABLE#.
2. As measured at the card connector pad.
2.3.4 USIM Interface
The USIM interface pins provide the connections necessary to
interface to a USIM socket located on host system.
Voltage levels over this interface comply with 3GPP standards.
2.3.5 Antenna Interface
The modem has two connecters for antenna interface. The one is for
Main antenna and the other is for Diversity antenna(AUX).
The connector type is UF.L and the path is assumed to be 50 ohms.
Conditions
0V to 3.3V
0V to 3.3V
LG Electronics Confidential
Min
Max
3.3‐9%
2.0
3.6
‐0.5
0.8
‐10
+10
‐50
+50
Units Notes
V
2
V
1
V
1
μA
1
μA
1
7
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