LG KS360 - SIM Interface

- 33 -
3. TECHNICAL BRIEF
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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
Figure 7. SIM Circuit
SIM CONNECTOR
C548
1000p
2V9_VSIM
4
C5
C6
5
C7
6
GND1
7
8
GND2GND3
9
10
GND4
J500
1
C1
2
C2
C3
3
22p
C547
R523
DNI
15K
C546
R522
2V9_VSIM
DNI
C543
220n
SIM_DATA SIM_CLK
SIM_RST