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STMicroelectronics Electronic Components Datasheet

LIS3L02DQ Datasheet

INERTIAL SENSOR

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LIS3L02DQ pdf
LIS3L02DQ
INERTIAL SENSOR:
3Axis - 2g DIGITAL OUTPUT LINEAR ACCELEROMETER
w1ww.daFtaEshAeeTt4Uu.cRomES
2.7V TO 3.6V SINGLE SUPPLY OPERATION
1.8V COMPATIBLE IOs
I2C/SPI DIGITAL OUTPUT INTERFACES
MOTION ACTIVATED INTERRUPT SOURCE
FACTORY TRIMMED DEVICE SENSITIVITY
AND OFFSET
EMBEDDED SELF TEST
HIGH SHOCK SURVIVABILITY
Figure 1. Package
PRELIMINARY DATA
QFN-44
Table 1. Order Codes
Part Number
LIS3L02DQ
Package
QFN-44
2 DESCRIPTION
The LIS3L02DQ is a tri-axis digital output linear
accelerometer that includes a sensing element
and an IC interface able to take the information
from the sensing element and to provide the mea-
sured acceleration signals to the external world
through an I2C/SPI serial interface.
The sensing element, capable to detect the accel-
eration, is manufactured using a dedicated pro-
cess called THELMA (Thick Epi-Poly Layer for
Microactuators and Accelerometers) developed
by ST to produce inertial sensors and actuators in
silicon.
The IC interface instead is manufactured using a
CMOS process that allows high level of integration
to design a dedicated circuit which is factory
trimmed to better match the sensing element char-
acteristics.
The LIS3L02DQ is capable of measuring acceler-
ations over a maximum bandwidth of 2.0 KHz for
the X, Y axis and Z axis. The device bandwidth
may be selected accordingly to the application re-
quirements. A self-test capability allows the user to
check the functioning of the system.
The device may be configured to generate an iner-
tial wake-up/interrupt signal when a programma-
ble acceleration threshold is exceeded along one
of the three axis.
The LIS3L02DQ is available in plastic SMD pack-
age and it is specified over a temperature range
extending from -20°C to +70°C.
The LIS3L02DQ belongs to a family of products
suitable for a variety of applications:
– Motion activated functions in mobile terminals
– Antitheft systems and Inertial navigation
– Gaming and Virtual Reality input devices
– Vibration Monitoring and Compensation
Figure 2. Block Diagram
S1X
S1Y
CHARGE
Σ∆
Reconstruction
Filter
CS
S1Z
AMPLIFIER
SCL/SPC
rot
MUX
S2Z
DE
MUX
Σ∆
Reconstruction
Filter
Regs
Array
I2C
SPI
SDA/SDIO
SDO
S2Y
S2X
Σ∆
Reconstruction
Filter
VOLTAGE & CURRENT
REFERENCE
TRIMMING CIRCUIT
&
TEST INTERFACE
CLOCK
&
PHASE GENERATOR
CONTROL LOGIC
&
INTERRUPT GEN.
RDY/INT
January 2005
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
Rev. 3
1/19


STMicroelectronics Electronic Components Datasheet

LIS3L02DQ Datasheet

INERTIAL SENSOR

No Preview Available !

LIS3L02DQ pdf
LIS3L02DQ
Table 2. Pin Description
N° Pin
Function
1 to 2
NC Internally not connected
3
GND
0V supply
4 Vdd Power supply
www5.dtoat1a2sheet4u.coNmC
Internally not connected
13 Reserved Leave unconnected or connect to Vdd
14 Reserved Leave unconnected or connect to GND
15 RDY/INT Data ready/inertial wake-up interrupt
16
SDO
SPI Serial Data Output
17
SDA/
I2C Serial Data (SDA)
SDI/
SPI Serial Data Input (SDI)8
SDO
3-wire Interface Serial Data Output (SDO)
18 SCL/SPC I2C Serial Clock (SCL)
SPI Serial Port Clock (SPC)
19 CS SPI enable
I2C/SPI mode selection (1: I2C mode; 0: SPI enabled)
20 Vdd_IO Power supply for I/O pads
21 Vdd Power supply
22
GND
0V supply
23 to 44
NC Internally not connected
Figure 3. Pin Connection (Top view)
Z
Y
1
X
DIRECTION OF THE
DETECTABLE
ACCELERATIONS
NC NC
NC NC
GND
NC
Vdd NC
NC NC
NC
LIS3L02DQ
NC
NC NC
NC NC
NC NC
NC NC
NC NC
2/19


Part Number LIS3L02DQ
Description INERTIAL SENSOR
Maker STMicroelectronics
Total Page 19 Pages
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