LG LG-P970 - Motion Sensor

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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3.18 Motion Sensor
The motion sensor can sense gravity & accelerated motion. Therefore according to the direction of cell phone,
the phone screen is rotated automatically. And the motion sensor is connected with a gyro sensor to
supplement each data.
U104(SUB_FPCB) : KXTF9 IC is interfaced to OMAP3630(U301) using I2C interface.
Figure. Motion Sensor Schematic
G
Figure. Motion Sensor Block Diagram
C118
0.1u
U104
4
3
2
1
50
1
6
7
8
9
SCL
DNC4
INT
DNC3
A
DS
D
DV
IO_VDD
DNC1
DNC2
GND
C123
0.1u
IME_DA
IME_CL
1.8V_MOTION_VIO
3.0V_MOTION
MOTION_INT
X
Senser
Y
Senser
Z
Senser
Charge Amp
A/D
I
2
C
Digital Engine
Digital
Filter
Vdd
IO Vdd
GND
5
1
4
7
9
10