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BMX160 Datasheet(HTML) 4 Page - Bosch Sensortec GmbH

Part No. BMX160
Description  Small, low power 9-axis sensor
Download  113 Pages
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Maker  BOSCH [Bosch Sensortec GmbH]
Homepage  https://www.bosch-sensortec.com
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BMX160 Datasheet(HTML) 4 Page - Bosch Sensortec GmbH

 
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BMX160
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Page 4
BST-BMX160-DS000-12 | Revision 1.2 | January 2019
Bosch Sensortec
© Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third
parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. Note: Specifications within this document are preliminary and
subject to change without notice.
Index of Contents
1. SPECIFICATION ........................................................................................................................7
1.1 ELECTRICAL SPECIFICATION ................................................................................................ 7
1.2 ELECTRICAL AND PHYSICAL CHARACTERISTICS, MEASUREMENT PERFORMANCE .................... 8
1.3 ABSOLUTE MAXIMUM RATINGS .......................................................................................... 13
2. FUNCTIONAL DESCRIPTION.................................................................................................14
2.1 BLOCK DIAGRAM............................................................................................................... 14
2.2 POWER MODES ................................................................................................................ 15
2.2.1 TRANSITIONS BETWEEN POWER MODES........................................................................................ 16
2.2.2 PMU (POWER MANAGEMENT UNIT) .............................................................................................. 20
2.3 SENSOR TIMING AND DATA SYNCHRONIZATION................................................................... 20
2.3.1 SENSOR TIME .............................................................................................................................. 20
2.3.2 DATA SYNCHRONIZATION ............................................................................................................. 21
2.4 DATA PROCESSING........................................................................................................... 21
2.4.1 DATA PROCESSING ACCELEROMETER........................................................................................... 22
2.4.2 DATA PROCESSING GYROSCOPE .................................................................................................. 23
2.4.3 DATA PROCESSING MAGNETOMETER ............................................................................................ 24
2.5 FIFO................................................................................................................................ 28
2.5.1 FIFO FRAMES ............................................................................................................................. 28
2.5.2 FIFO CONDITIONS AND DETAILS................................................................................................... 32
2.6 INTERRUPT CONTROLLER.................................................................................................. 32
2.6.1 ANY-MOTION DETECTION (ACCEL) ................................................................................................ 33
2.6.2 SIGNIFICANT MOTION (ACCEL)...................................................................................................... 34
2.6.3 STEP DETECTOR (ACCEL) ............................................................................................................ 35
2.6.4 TAP SENSING (ACCEL) ................................................................................................................. 36
2.6.5 ORIENTATION RECOGNITION (ACCEL) ........................................................................................... 37
2.6.6 FLAT DETECTION (ACCEL) ............................................................................................................ 43
2.6.7 LOW-G / FREE-FALL DETECTION (ACCEL)....................................................................................... 44
2.6.8 HIGH-G DETECTION (ACCEL) ........................................................................................................ 44
2.6.9 SLOW-MOTION ALERT / NO-MOTION INTERRUPT (ACCEL) .............................................................. 45
2.6.10 DATA READY DETECTION (ACCEL, GYRO AND MAG) .................................................................... 48
2.6.11 PMU TRIGGER (GYRO) .............................................................................................................. 48
2.6.12 FIFO INTERRUPTS (ACCEL, GYRO, AND MAG) ............................................................................. 48
2.7 STEP COUNTER ................................................................................................................ 49
2.8 DEVICE SELF-TEST ........................................................................................................... 49
2.8.1 SELF-TEST ACCELEROMETER....................................................................................................... 49
2.8.2 SELF-TEST GYROSCOPE .............................................................................................................. 50
2.8.3 SELF-TEST MAGNETOMETER ........................................................................................................ 50
2.9 OFFSET COMPENSATION ................................................................................................... 52
2.9.1 FAST OFFSET COMPENSATION...................................................................................................... 52
2.9.2 MANUAL OFFSET COMPENSATION................................................................................................. 52
2.9.3 INLINE CALIBRATION..................................................................................................................... 53


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