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ADXL346 Datasheet(Arkusz danych) 2 Page - Analog Devices

Numer części ADXL346
Szczegółowy opis  3-Axis, ±2 g/±4 g/±8 g/±16 g Ultralow Power Digital Accelerometer
Pobierz  32 Pages
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Strona internetowa  http://www.analog.com
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ADXL346
Preliminary Technical Data
Rev. PrC | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
Thermal Resistance ...................................................................... 4
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ...................................................................... 10
Power Sequencing ...................................................................... 10
Power Savings.............................................................................. 10
Serial Communications ................................................................. 12
SPI................................................................................................. 12
I2C ................................................................................................. 14
Interrupts ..................................................................................... 16
FIFO ............................................................................................. 16
Self-Test ....................................................................................... 17
Register Map ................................................................................... 19
Register Definitions ................................................................... 20
Applications Information .............................................................. 25
Power Supply Decoupling ......................................................... 25
Mechanical Considerations for Mounting.............................. 25
Tap Detection.............................................................................. 25
Improved Tap Detection............................................................ 26
Tap Sign ....................................................................................... 26
Threshold .................................................................................... 27
Link Mode ................................................................................... 27
Sleep Mode vs. Low Power Mode............................................. 27
Using Self-Test ............................................................................ 27
Orientation Sensing ................................................................... 28
Axes of Acceleration Sensitivity ............................................... 29
Layout and Design Recommendations ................................... 30
Outline Dimensions ....................................................................... 31
Ordering Guide .......................................................................... 31
REVISION HISTORY
6/09—Revision PrC: Updated Specifications and functional descriptions of Orientation, Tap Sign and Improved Tap.
4/09—Revision PrB: Updated Absolute Maximum Ratings table to reflect correct values for the ADXL346.
3/09—Revision PrA: Initial Version




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