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PDF L3G4200D Data sheet ( Hoja de datos )

Número de pieza L3G4200D
Descripción MEMS motion sensor three-axis digital output gyroscope
Fabricantes STMicroelectronics 
Logotipo STMicroelectronics Logotipo



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L3G4200D
MEMS motion sensor:
three-axis digital output gyroscope
Features
Three selectable full scales
(±250/500/2000 dps)
I2C/SPI digital output interface
16 bit rate value data output
Two digital output lines (interrupt and
dataready)
Integrated low and high pass filters with user
selectable bandwidth
Embedded self-test
Wide supply voltage, 2.4 V to 3.6 V
Low voltage compatible IOs, 1.8 V
Embedded power-down and sleep mode
High shock survivability
Extended operating temperature range
(-40 °C to +85 °C)
ECOPACK® RoHS and “Green” compliant
(see Section 6)
Applications
Gaming and virtual reality input devices
Motion control with MMI (man-machine
interface)
GPS navigation systems
Appliances and robotics
LGA-16 (4x4x1 mm)
Description
The L3G4200D is a low-power three-axis
gyroscope providing three different user
selectable full scales (±250/±500/±2000 dps).
It includes a sensing element and an IC interface
able to provide the detected angular rate to the
external world through a digital interface
(I2C/SPI).
The sensing element is manufactured using
specialized micromachining processes, while the
IC interface is realized using a CMOS technology
that allows designing a dedicated circuit which is
trimmed to better match the sensing element
characteristics.
The L3G4200D is available in a plastic land grid
array (LGA) package and provides excellent
temperature stability and high resolution over an
extend operating temperature range (-40 °C to
+85 °C).
Table 1. Device summary
Order code
Temperature range (°C)
L3G4200D
L3G4200DTR
-40 to + 85
Package
LGA-16 (4x4x1)
Packing
Tray
Tape and reel
February 2010
Doc ID 17116 Rev 1
1/24
www.st.com
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L3G4200D pdf
L3G4200D
Block diagram anwdwpwi.nDadteasShceriept4tiUo.cnom
1 Block diagram and pin description
Figure 1. Block diagram
+ x,y,z
X+
CHARGE MIXER LOW-PASS
Y+ AMP
FILTER
Z+
M
U
X
Z-
Y-
X-
A
D
C
DF
I
G
I
T
A
I
L
T
E
R
I
LN
G
CS
I2C SCL/SPC
SPI SDA/SDO/SDI
SDO
1.1
DRIVING MASS
Feedback loop
REFERENCE
TRIMMING
CIRCUITS
CLOCK
&
PHASE GENERATOR
CONTROL LOGIC
&
INTERRUPT GEN.
INT
DRDY
AM06080v1
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.
Pin description
Figure 2. Pin connection
+ Z
1
X
+Y
(TOP VIEW)
DIRECTIONS OF THE
DETECTABLE
ANGULAR RATES
+X
13 16
RES 12
1
RES
RES
BOTTOM
VIEW
Vdd_IO
SCL/SPC
SDA/SDI/SDO
RES 9
8
4 SDO/SA0
5
AM06081v1
Doc ID 17116 Rev 1
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L3G4200D arduino
L3G4200D
Mechanical and electricwawlws.pDeactaifSihceaetti4oUn.csom
2.3.2
I2C - Inter IC control interface
Subject to general operating conditions for Vdd and Top.
Table 7. I2C slave timing values
Symbol
Parameter
I2C Standard mode(1)
Min Max
f(SCL)
tw(SCLL)
tw(SCLH)
tsu(SDA)
th(SDA)
SCL clock frequency
SCL clock low time
SCL clock high time
SDA setup time
SDA data hold time
0 100
4.7
4.0
250
0 3.45
tr(SDA) tr(SCL) SDA and SCL rise time
1000
tf(SDA) tf(SCL) SDA and SCL fall time
300
th(ST)
tsu(SR)
START condition hold time
Repeated START condition
setup time
4
4.7
tsu(SP)
STOP condition setup time
4
tw(SP:SR)
Bus free time between STOP
and START condition
4.7
1. Data based on standard I2C protocol requirement, not tested in production.
2. Cb = total capacitance of one bus line, in pF.
I2C Fast mode (1)
Min Max
0 400
1.3
0.6
100
0 0.9
20 + 0.1Cb (2)
20 + 0.1Cb (2)
300
300
0.6
0.6
0.6
1.3
Figure 5. I2C slave timing diagram (3)
Unit
kHz
µs
ns
µs
ns
µs
START
SDA
REPEATED
START
tsu(SR)
tw(SP:SR)
START
tf(SDA)
SCL
tr(SDA)
tsu(SDA)
th(SDA)
tsu(SP)
STOP
th(ST) tw(SCLL)
tw(SCLH)
tr(SCL)
tf(SCL)
3 Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both ports
Doc ID 17116 Rev 1
11/24

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