LG Electronics KS360 service manual SIM interface, SIM Circuit

Models: KS360

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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 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 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

Copyright © 2008 LG Electronics. Inc. All right reserved.

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LGE Internal Use Only

Only for training and service purposes

 

 

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LG Electronics KS360 service manual SIM interface, SIM Circuit