Sim Interface - LG KS360 Service Manual

3.5 SIM interface

KS360 supports 1.8V & 3V plug in SIM, SIM interface scheme is shown in (Figure 7). SIM_DATA,
SIM_CLK, SIM_RST ports are used to communicate with BBP(S-GOLDRadio).
SIM Interface
SIM_CLK : SIM card reference clock
SIM_RST : SIM card Async /sync reset
SIM_DATA : SIM card bidirectional data
SIM_DATA
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
SIM CONNECTOR
2V9_VSIM
R522
J500
15K
4
C5
5
C6
6
C7
10
GND4 GND1
9
GND3 GND2
C546
DNI
Figure 7. SIM Circuit
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3. TECHNICAL BRIEF
2V9_VSIM
1
C1
2
C2
3
C3
7
8
C543 C547 C548
220n 22p 1000p
SIM_RST
SIM_CLK
LGE Internal Use Only