Tri-Axial, Digital Acceleration Sensor - LG KP500 Service Manual

3.16 Tri-axial, digital acceleration sensor

General description
The BMA150 is a tri-axial, low-g acceleration sensor IC with digital output for consumer market
applications. It allows measurements of acceleration in perpendicular axes as well as absolute
temperature measurement.
An evaluation circuitry converts the output of a three-channel micromechanical acceleration sensing
structure that works according to the differential capacitance principle.
Package and interface have been defined to match a multitude of hardware requirements.
Since the sensor IC has small footprint and flat package it is attractive for mobile applications.
The sensor IC can be programmed to optimize functionality, performance and power consumption in
customer specific applications.
The BMA150 senses tilt, motion and shock vibration in cell phones, handhelds, computer peripherals,
man-machine interfaces, virtual reality features and game controllers.
The BMA150 is the LGA package version of the SMB380 triaxial acceleration sensor which is available
in a 3mm x 3mm x 0.9mm QFN package.
Axes orientation of the BMA150
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
THREE- AXIS ACCELEROMETER
U302
1
N 1 C
2
D V D
3
G N D
4
C A E C I _ L T N I T N
5
C B S
BMA150
EUSY0345201
- 57 -
3. TECHNICAL BRIEF
VIO_2V62
0 1
N 2 C
9
D V D O I
8
S I D I C _ F D S A
7
D S O
6
S K C C F I S _ L C
3 C 0 4
. 0 u 1
LGE Internal Use Only