전자부품 반도체 검색엔진( 무료 PDF 다운로드 ) - 데이터시트뱅크
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A3G4250DTR 데이터 시트보기 (PDF) - STMicroelectronics
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A3G4250DTR
MEMS motion sensor: 3-axis digital output gyroscope
STMicroelectronics
A3G4250DTR Datasheet PDF : 44 Pages
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A3G4250D
Block diagram and pin description
1
Block diagram and pin description
Figure 1. Block diagram
+
Ω
x,y,z
X+
CHARGE MIXER LOW-PA
SS
Y+
AMP
FILTER
Z+
M
A
U
D
X
C
Z-
1
Y-
X-
T
E
DRIVING MA
SS
M
P
E
R
A
T
U
S
E
N
S
O
R
A
D
C
2
Feed
ba
ck loop
R
E
D
I
G
I
T
A
L
F
I
L
T
E
R
I
N
G
C
S
I2C
S
CL/
S
PC
S
PI
S
DA/
S
DO/
S
DI
S
DO
REFERENCE
TRIMMING
CIRCUIT
S
FIFO
CLOCK
&
PHA
S
E GENERATOR
CONTROL LOGIC
&
INTERRUPT GEN.
INT1
DRDY/INT2
AM07225v1
The vibration of the structure is maintained by drive circuitry in a feedback loop. The sensing
signal is filtered and appears as a digital signal at the output.
1.1
Pin description
Figure 2.
Pin connection
+ Ω
Z
1
X
+ Ω
Y
+Ω
X
(TOP VIEW)
DIRECTION
S
OF THE
DETECTABLE
ANGULAR RATE
S
1
3
16
RE
S
12
1
RE
S
RE
S
BOTTOM
VIEW
Vdd_IO
S
CL/
S
PC
S
DA/
S
DI/
S
DO
RE
S
9
8
4
S
DO/
S
A0
5
AM07226v1
Doc 022768 Rev 3
7/44
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