
3. TECHNICAL BRIEF
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 
SIM Interface
SIM_CLK : SIM card reference clock
SIM_RST : SIM card Async /sync reset
SIM_DATA : SIM card bidirectional data
SIM CONNECTOR
2V9_VSIM  | 2V9_VSIM  | 
R522
15K
SIM_DATA
C546
DNI
DNI  | R523  | 
  | 
  | 
  | J500  | 
  | |
  | 4  | C5  | C1  | 1  | |
5  | 2  | ||||
6  | C6  | C2  | 3  | ||
10  | C7  | C3  | 7  | ||
GND4 GND1  | |||||
9  | 8  | ||||
  | 
  | GND3 GND2  | 
  | ||
SIM_RST
SIM_CLK
C543 C547 C548
220n 22p 1000p
Figure 7. SIM Circuit
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