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L3GD20HTR Datasheet(PDF) 8 Page - STMicroelectronics

Part # L3GD20HTR
Description  MEMS motion sensor: three-axis digital output gyroscope
PDF  52 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L3GD20HTR Datasheet(HTML) 8 Page - STMicroelectronics

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Block diagram and pin description
L3GD20H
8/52
DocID023469 Rev 2
1
Block diagram and pin description
Figure 1. Block diagram
The vibration of the structure is maintained by a drive circuitry in a feedback loop. The
sensing signal is filtered and appears as digital signal at the output.
1.1
Pin description
Figure 2. Pin connection
FIFO
TRIMMING
CIRCUITS
REFERENCE
MIXER
CHARGE
AMP
CLOCK
LOW-PASS
FILTER
+Ω
x,y,z
I2C
SPI
CS
SCL/SPC
SDA/SDI/SDO
SDO/SA0
Y+
Z+
Y-
Z-
X+
X-
DRIVING MASS
Feedback loop
M
U
X
A
D
D
C
I
G
I
T
A
L
F
I
L
T
E
R
I
N
G
CONTROL LOGIC
&
INTERRUPT GEN.
INT1
DRDY/INT2
DEN
A
D
C
T
E
M
P
E
R
A
T
U
R
E
S
E
N
S
O
R
1
2
&
PHASE GENERATOR
AM12689V1
(TOP VIEW)
DIRECTIONS OF THE
DETECTABLE
ANGULAR RATE
1
X
Vdd_IO
SCL/SPC
SDA/SDI/SDO
SDO/SA0
RES
CS
1
8
6
16
+Ω
Z
+Ω
X
BOTTOM
VIEW
+Ω
Y
5
13
9
RES
RES
GND
GND
14
AM12690V1



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