Motion Sensor - LG -P940 Service Manual

3.16 Motion Sensor

3.16 Motion Sensor
The motion sensor can sense gravity & accelerated motion. Therefore according to the direction of cell phone,
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
the phone screen is rotated automatically. And the motion sensor is connected with a gyro sensor to
supplement each data.
supplement each data.
U801 : KXTF9 IC is interfaced to OMAP4430(U500) using IC interface.
U801 : KXTF9 IC is interfaced to OMAP4430(U500) using I2C interface.
VSEL_1.8V
SENSOR_3.0V
X
Sensor
Y
Sensor
Z
Sensor
Vdd
IO Vdd
GND
Figure. Motion Sensor Block Diagram
LGE Internal Use Only
1
IO_VDD
2
C816
DNC1
0.1u
3
DNC2
4
GND
C830 C831
0.1u 1u
Figure. Motion Sensor Schematic
Charge
A/D
Amp
I  C
Digital
Digital Engine Fiter
9
SCL
U801
8
DNC4
7
INT
6
DNC3
IO Vdd
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3. TECHNICAL BRIEF
IME_DA
IME_CL
VSEL_1.8V
R801
DNI
MOTION_INT
SDA
SCL
KXTF9
INT
Vdd
Only for training and service purposes