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Only for training and service purposes
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3. TECHNICAL BRIEF
3.14. Acceleration sensor
Acceleration sensing circuit is realized with BMA150 which is a tri-axial, low-g acceleration sensor IC
with digital output. An evaluation circuitry converts the output of a three-channel micromechanical
acceleration sensing structure that works according to the differential capacitance principle. The I2C
protocol is used for a data communication between master and slave.
ROSNES LECCA
O
I
V
_
2
6
V
2
007
PT
n
2
2
8
1
7
C
11
NOT1
NOT2
12
K
C
S
6
8
I
D
S
7
O
D
S
2
O
I
D
D
VD
D
V
9
0
5
1AMB
5
07
U
B
S
C
5
D
N
G
3
4
T
N
I
1
C
N
11
0
2
C
N
MF
V
_
5
8
V
2
9
1
7
C
u
1
.
0
T
N
I
_LEC
C
A
A
D
S
L
C
S
< Fig 22. Acceleration Sensor Circuit Diagram >
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