LG GT350 - SIM & Usd Interface; Micro Sd Connector

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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
LG Electronics 33/115 LGE Property
3.5 SIM & uSD interface
GT350 supports 1.8V & 2.9V plug in SIM, SIM interface scheme is shown in (Figure 8).
SIM_IO, SIM_CLK, SIM_RST ports are used to communicate with BBP(S-Gold3) and the SIM power supply
enabled by PMIC.
SIM Interface
SIM_CLK : SIM card reference clock
SIM_RST : SIM card Async /sync reset
SIM_IO : SIM card bidirectional reset
Figure 8 SIM & Micro SD Circuit
GCA26D-6S-H18-E1500
ENSY0025101
J501
9 8
10 7
6 3
5 2
4 1
C1C5
C2C6
C3C7
GND1GND4
GND2GND3
15K
R523
1n
C521
DNI
C522
DNI
R528
220n
C539
22p
C540
SIM_RST
SIM_IO SIM_CLK
2V9_VSIM2V9_VSIM
SIM CONNECTOR
104042-001
ENSY0023501
S502
DAT1_2
DUMMY1
DAT0
VSS
CLK
VDD
CMD
CD_DAT3
DUMMY2
DAT2
DETECT_A
DETECT_B
DUMMY3
27p
C502
27p
C503
K0
0
1
4
1
5R
27p
C509
27p
C510
27p
C511
27p
C516
K
001
81
5
R
K001
915R
K
001
02
5
R
K001
125R
27p
C518
27p
C519
1u
C520
K
001
22
5
R
MMC_CMD
MMC_CLK
2V9_VMME
2V9_VMME
MMC_D[3]
MMC_D[2]
MMC_D[1]
MMC_D[0]
_MMC_DET
2V62_VIO
MICRO SD Connector