LG LG-V909DW - 3.19 Touch Module

3. TECHNICAL BRIEF
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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
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3.19 Touch Module
Touch module is connected to Main PCB with 10-pin connector.
The Touch module is controlled by I2C Interface in T20.
Figure. Schematic of Touch connector (Main Board)
Pin No. Signal desc
ription
1 V_TCH_POWER Power supply for driver IC
2 TOUCH_INT_N Interrupt
3 TOUCH_I2C_SDA I2C data
4 TOUCH_I2C_SCL I2C clock
5 TOUCH_RESET_N Reset
6 V_TCH_POWER Power supply for driver IC
7 GND -
8 GND -
9 GND -
10 TOUCH_ID Maker ID
Table. Interface between Touch Module and MAIN Board
0.1u
C913
309R
IND
CN900
65
74
83
92
101
V_TCH_POWER
V_TCH_3V3
TOUCH_INT_N
TOUCH_RESET_N
TOUCH_I2C_SCL
TOUCH_I2C_SDA
TOUCH_ID