STEVAL-IFS001V1 STMicroelectronics, STEVAL-IFS001V1 Datasheet

EVAL BOARD 3AXIS MEMS ACCELLRMTR

STEVAL-IFS001V1

Manufacturer Part Number
STEVAL-IFS001V1
Description
EVAL BOARD 3AXIS MEMS ACCELLRMTR
Manufacturer
STMicroelectronics
Series
MEMSr

Specifications of STEVAL-IFS001V1

Design Resources
STEVAL-IFS001V1 Gerber Files STEVAL-IFS001V1 Schematic STEVAL-IFS001V1 Bill of Material
Sensor Type
Accelerometer, 3 Axis
Sensing Range
±2g, 6g
Interface
I²C, SPI
Sensitivity
1024 LSb/g
Voltage - Supply
2.16 V ~ 3.6 V
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
LIS3LV02DQ
Processor To Be Evaluated
LIS3LV02DQ
Interface Type
USB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
497-5069

Available stocks

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Quantity
Price
Part Number:
STEVAL-IFS001V1
Manufacturer:
ST
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Features
Description
The LIS3LV02DQ is a three axes 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 measured acceleration signals to the
external world through an I
The sensing element, capable of detecting the
acceleration, is manufactured using a dedicated
process 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
Order codes
October 2005
3-Axis - ±2g/±6g Digital Output Low Voltage Linear Accelerometer
2.16V TO 3.6V SINGLE SUPPLY
OPERATION
1.8V COMPATIBLE IOs
I
PROGRAMMABLE 12 or 16 BIT DATA
REPRESENTATION
INTERRUPT ACTIVATED BY MOTION
PROGRAMMABLE INTERRUPT
THRESHOLD
EMBEDDED SELF TEST
HIGH SHOCK SURVIVABILITY
ECO-PACK COMPLIANT
2
C/SPI DIGITAL OUTPUT INTERFACES
LIS3LV02DQ-TR
Part number
LIS3LV02DQ
2
C/SPI serial interface.
Op. Temp. range, °C
-40 to +85
-40 to +85
CD00047926
trimmed to better match the sensing element
characteristics.
The LIS3LV02DQ has a user selectable full scale
of ±2g, ±6g and it is capable of measuring
acceleration over a bandwidth of 640 Hz for all
axes. The device bandwidth may be selected
accordingly to the application requirements. A
self-test capability allows the user to check the
functioning of the system
The device may be configured to generate an
inertial wake-up/free-fall interrupt signal when a
programmable acceleration threshold is crossed
at least in one of the three axes.
The LIS3LV02DQ is available in plastic SMD
package and it is specified over a temperature
range extending from -40°C to +85°C.
The LIS3LV02DQ belongs to a family of products
suitable for a variety of applications:
Free-Fall detection
Motion activated functions in portable terminals
Antitheft systems and Inertial navigation
Gaming and Virtual Reality input devices
Vibration Monitoring and Compensation
QFPN-28
QFPN-28
Package
MEMS INERTIAL SENSOR
QFPN-28
LIS3LV02DQ
Tape and Reel
Packing
Tray
www.st.com
Rev 1
1/42
42

Related parts for STEVAL-IFS001V1

STEVAL-IFS001V1 Summary of contents

Page 1

Digital Output Low Voltage Linear Accelerometer Features ■ 2.16V TO 3.6V SINGLE SUPPLY OPERATION ■ 1.8V COMPATIBLE IOs 2 ■ I C/SPI DIGITAL OUTPUT INTERFACES ■ PROGRAMMABLE BIT DATA REPRESENTATION ■ INTERRUPT ACTIVATED BY ...

Page 2

Contents 1 Block Diagram & Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 ...

Page 3

LIS3LV02DQ 7.2 OFFSET_X (16h ...

Page 4

Mechanical Characteristics derived from measurement in the -40°C to +85°C temperature range 8.3 Electro-Mechanical characteristics at 25° ...

Page 5

LIS3LV02DQ 1 Block Diagram & Pin Description 1.1 Block diagram Figure 1. Block Diagram SELF TEST 1.2 QFPN-28 Pin description Figure 2. Pin Connection 1 Z DIRECTION OF THE DETECTABLE ACCELERATIONS Σ∆ ...

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Block Diagram & Pin Description Table 1. Pin description Pin Reserved SCL/SPC 13 14 Reserved 19 20 Reserved 21-28 6/42 Name NC Internally ...

Page 7

LIS3LV02DQ 2 Mechanical and Electrical specifications 2.1 Mechanical characteristics Table 2. Mechanical Characteristics (All the parameters are specified @ Vdd=2.5V, T=25°C unless otherwise noted) Symbol Parameter FS Measurement range Dres Device Resolution So Sensitivity Sensitivity Change Vs TCS0 Temperature Zero-g ...

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Mechanical and Electrical specifications Table 2. Mechanical Characteristics (continued) (All the parameters are specified @ Vdd=2.5V, T=25°C unless otherwise noted) Symbol Parameter NL Non Linearity CrAx Cross Axis V Self test Output Change System Bandwidth Operating ...

Page 9

LIS3LV02DQ Table 3. Mechanical Characteristics (All the parameters are specified @ Vdd=3.3V, T=25°C unless otherwise noted) Symbol Parameter FS Measurement range Dres Device Resolution So Sensitivity Sensitivity Change Vs TCS0 Temperature Zero-g Level Offset Off 4,5 Accuracy Zero-g Level Offset ...

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Mechanical and Electrical specifications Table 3. Mechanical Characteristics (continued) (All the parameters are specified @ Vdd=3.3V, T=25°C unless otherwise noted) Symbol Parameter V Self test Output Change System Bandwidth Operating Temperature Top Range Wh Product Weight ...

Page 11

LIS3LV02DQ 2.2 Electrical characteristics Table 4. Electrical Characteristics (All the parameters are specified @ Vdd=2.5V, T=25°C unless otherwise noted) Symbol Parameter Vdd Supply voltage Vdd_IO I/O pads Supply voltage Idd Supply current Digital High level Input VIH voltage Digital Low ...

Page 12

Mechanical and Electrical specifications 2.3 Absolute maximum ratings Stresses above those listed as “absolute maximum ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device under these conditions is ...

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LIS3LV02DQ 2.4 Terminology 2.4.1 Sensitivity Sensitivity describes the gain of the sensor and can be determined e.g. by applying 1g acceleration to it. As the sensor can measure DC accelerations this can be done easily by pointing the axis of ...

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Functionality 3 Functionality The LIS3LV02DQ is a high performance, low-power, digital output 3-axis linear accelerometer packaged in a QFN package. The complete device includes a sensing element and an IC interface able to take the information from the sensing ...

Page 15

LIS3LV02DQ 3.3 Factory calibration The IC interface is factory calibrated for sensitivity (So) and Zero-g level (Off). The trimming values are stored inside the device by a non volatile structure. Any time the device is turned on, the trimming parameters ...

Page 16

Application Hints 4 Application Hints Figure 3. LIS3LV02DQ Electrical Connection 10uF 100nF Vdd GND The device core is supplied through Vdd line while the I/O pads are supplied through Vdd_IO line. Power supply decoupling capacitors (100 nF ceramic, 10 ...

Page 17

LIS3LV02DQ 5 Digital Interfaces The registers embedded inside the LIS3LV02DQ may be accessed through both the I SPI serial interfaces. The latter may be SW configured to operate either in 3-wire or 4-wire interface mode. The serial interfaces are mapped ...

Page 18

Digital Interfaces 2 5.1 Operation The transaction on the bus is started through a START (ST) signal. A START condition is defined as a HIGH to LOW transition on the data line while the SCL line is ...

Page 19

LIS3LV02DQ function, it can hold the clock line, SCL LOW to force the transmitter into a wait state. Data transfer only continues when the receiver is ready for another byte and releases the data line slave receiver doesn’t ...

Page 20

Digital Interfaces bit 8-15 : data DI(7:0) (write mode). This is the data that will be written into the device (MSb first). bit 8-15 : data DO(7:0) (read mode). This is the data that will be read from the ...

Page 21

LIS3LV02DQ 5.2.2 SPI Write Figure 7. SPI Write protocol CS SPC SDI The SPI Write command is performed with 16 clock pulses. Multiple byte write command is performed adding blocks of 8 clock pulses at the previous one. bit 0 ...

Page 22

Digital Interfaces The SPI Read command is performed with 16 clock pulses: bit 0 : READ bit. The value is 1. bit bit. When 0 do not increment address, when 1 increment address in multiple reading. ...

Page 23

LIS3LV02DQ 6 Register mapping The table given below provides a listing of the 8 bit registers embedded in the device and the related address. Table 8. Registers address map Reg. Name WHO_AM_I OFFSET_X OFFSET_Y OFFSET_Z GAIN_X GAIN_Y GAIN_Z CTRL_REG1 CTRL_REG2 ...

Page 24

Register mapping Table 8. Registers address map (continued) Reg. Name FF_WU_THS_H FF_WU_DURATION DD_CFG DD_SRC DD_ACK DD_THSI_L DD_THSI_H DD_THSE_L DD_THSE_H Registers marked as reserved must not be changed. The writing to those registers may cause permanent damages to the device. ...

Page 25

LIS3LV02DQ 7 Register Description The device contains a set of registers which are used to control its behavior and to retrieve acceleration data. The registers 7.2 to 7.7 contain the factory calibration values not necessary to change their ...

Page 26

Register Description 7.5 GAIN_X (19h) GX7, GX0 Digital Gain Trimming for X-Axis 7.6 GAIN_Y (1Ah) GY7, GY0 Digital Gain Trimming for Y-Axis 7.7 GAIN_Z (1Bh) GZ7, GZ0 Digital Gain Trimming for Z-Axis 7.8 CTRL_REG1 (20h) Power Down Control PD1, ...

Page 27

LIS3LV02DQ ST bit is used to activate the self test function. When the bit is set to one, an output change will occur to the device outputs (refer to table 2 and 3 for specification) thus allowing to check the ...

Page 28

Register Description trimmed and they are different for every accelerometer. They permit a good behavior of the device and normally they have not to be changed. At the end of the boot process the BOOT bit is set again ...

Page 29

LIS3LV02DQ 7.11 HP_FILTER_RESET (23h) Dummy register. Reading at this address zeroes instantaneously the content of the internal high pass-filter. Read data is not significant. 7.12 STATUS_REG (27h) ZYXOR X, Y and Z axis Data Overrun ZOR Z axis Data Overrun ...

Page 30

Register Description 7.15 OUTY_L (2Ah) YD7, YD0 Y axis acceleration data LSB In Big Endian Mode (bit BLE CTRL_REG2 set to ‘1’) the content of this register is the MSB acceleration data and depends by bit DAS in CTR_REG2 ...

Page 31

LIS3LV02DQ 7.19 FF_WU_CFG (30h) And/Or combination of Interrupt events interrupt request. Default value: 0. AOI (0: OR combination of interrupt events; 1: AND combination of interrupt events) Latch interrupt request. Default value: 0. LIR (0: interrupt request not latched; 1: ...

Page 32

Register Description 7.20 FF_WU_SRC (31h) Interrupt Active. Default value (0: no interrupt has been generated; 1: one or more interrupt event has been generated) Z High. Default value (0: no interrupt event has ...

Page 33

LIS3LV02DQ 7.22 FF_WU_THS_L (34h) THS7 THS6 THS5 THS4 THS3 THS2 THS1 THS0 THS7, THS0 Free-fall / Inertial Wake Up Acceleration Threshold LSB 7.23 FF_WU_THS_H (35h) THS15 THS14 THS13 THS12 THS11 THS10 THS9 THS15, THS8 Free-fall / Inertial Wake Up Acceleration ...

Page 34

Register Description 7.25 DD_CFG (38h) IEND Interrupt enable on Direction change. Default value: 0 IEND (0: disabled; 1: interrupt signal enabled) Latch Interrupt request into DD_SRC reg with the DD_SRC reg cleared by reading DD_ACK reg. Default value: 0. ...

Page 35

LIS3LV02DQ 7.26 DD_SRC (39h) X Interrupt event from direction change. IA (0: no direction changes detected; 1: direction has changed from previous measurement) Z High. Default value (0: Z below THSI threshold accel. exceeding THSE threshold ...

Page 36

Register Description 7.28 DD_THSI_L (3Ch) THSI7 THSI7, THSI0 Direction detection Internal Threshold LSB 7.29 DD_THSI_H (3Dh) THSI15 THSI14 THSI13 THSI15, THSI8 Direction detection Internal Threshold MSB 7.30 DD_THSE_L (3Eh) THSE7 THSE7, THSE0 7.31 DD_THSE_H (3Fh) THSE15 THSE14 THSE13 THSE12 ...

Page 37

LIS3LV02DQ 8 Typical performance characteristics 8.1 Mechanical Characteristics at 25°C Figure 10. x-axis 0-g level at 2. −10 −5 0 0−g LEVEL (mg) Figure 12. z-axis 0-g level at ...

Page 38

Typical performance characteristics 8.2 Mechanical Characteristics derived from measurement in the -40°C to +85°C temperature range Figure 16. x-axis 0-g level change vs. temperature at 2. −0.5 0 0−g level drift (mg/ Figure ...

Page 39

LIS3LV02DQ 8.3 Electro-Mechanical characteristics at 25°C Figure 22. x and y axis 0-g level as function of supply voltage −20 −40 −60 −80 2 2.2 2.4 2.6 2.8 3 Supply Voltage (V) Figure 24. Current ...

Page 40

Package Information 9 Package Information In order to meet environmental requirements, ST offers these devices in ECOPACK These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the ...

Page 41

LIS3LV02DQ 10 Revision history Date Revision 7-Oct-2005 1 Initial release. CD00047926 10 Revision history Changes 41/42 ...

Page 42

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...

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