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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
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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
C1
C5
C2
C6
C3
C7
GND1
GND4
GND2
GND3
15K
R523
1n
C521
DNI
C522
DNI
R528
220n
C539
22p
C540
SIM_RST
SIM_IO
SIM_CLK
2V9_VSIM
2V9_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
01
41
5
R
27p
C509
27p
C510
27p
C511
27p
C516
K0
01
81
5
R
K0
01
91
5
R
K0
01
02
5
R
K0
01
12
5
R
27p
C518
27p
C519
1u
C520
K0
01
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
Содержание GT350
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