Motion Sensor (Three-Axis-Accelerometer); Compass Sensor - LG E900 Service Manual

3. TECHNICAL BRIEF

3.15 Motion Sensor (Three-axis-accelerometer)

According to tilt the cell phone, the screen is had rotated automatically.
BMA150 IC used I2C interface to QSD8650
VREG_MSMP_2.6V
3D_INT_N
Figure. Motion Sensor (Three-axis-accelerometer) Schematic

3.16 Compass Sensor

Compass IC provides useful information in conjunction with motion sensor.
For example, four direction , Inclination, etc.
LGE Internal Use Only
U504 BMA150
1
NC1
2
VDD
3
GND
4
INT
5
CSB
EUSY0345201
C532
0603
22n
CMPS_INT
CMPS_RESET_N
CMPS_I2C_SDA
CMPS_I2C_SCL
Figure. Compass Schematic
VREG_MSMP_2.6V
0603
10
NC2
9
VDDIO
8
SDI
7
SDO
6
SCK
EUSY0345201
C506
0603
0.1u
VREG_MSMP_2.6V
C505 C533
0603
0.1u 0.1u
INT NC3
C4
RSTN NC2
D3 U502
CAD0 NC1
B2
CAD1
AK8973B
A2
SDA
B3
SCL
B4
EUSY0385501
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Copyright © 2010 LG Electronics. Inc. All right reserved.
3D_SDA
3D_SCL
C2
A4
A1
Only for training and service purposes