LG LG-V909DW - 3.15 Compass 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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3.15 Compass Sensor
If a customer buy the application SW, The Sensor provides user with a Electric Compass function.
U903 (AMI304) IC is interfaced to T20(U101) using I2C interface.
Figure. Compass Sensor Schematic
Figure. Compass Sensor Block Diagram
TP900
COMPASS_3V3
COMPASS_3V3
10n
C901
470n
C900
TP901
AMI304
U903
12
11
10
9
5
4
6
37 28 1
DDVD
GE
RV
A
D
NG
SDNG DDVA
ADDR
SCL
NC1
TNI
VPP
DRDY
SDA
GND
COMPASS_DRDY
SENSOR_I2C_SCL
SENSOR_I2C_SDA