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ISM330BXTR Datasheet(PDF) 39 Page - STMicroelectronics

Part # ISM330BXTR
Description  6-axis IMU (inertial measurement unit) with wide bandwidth, low-noise accelerometer, embedded AI and sensor fusion for industrial applications
PDF  150 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ISM330BXTR Datasheet(HTML) 39 Page - STMicroelectronics

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6.7.1
Block diagrams of the accelerometer filters
In the ISM330BX, the filtering chain for the accelerometer part is composed of the following:
•
Digital filter (LPF1)
•
Composite filter
Details of the block diagram appear in the following figure.
Figure 24. Accelerometer UI chain
Digital
LP Filter
OP_MODE_XL_[2:0]
ODR_XL_[3:0]
LPF1
Composite
Filter
ADC
Figure 25. Accelerometer composite filter
SLOPE
FILTER
000
001
010
…
111
SPI /
I2C /
MIPI I3C
1
0
HP_SLOPE_XL_EN
LPF2_XL_EN
0
1
Digital
HP Filter
HP_LPF2_XL_BW_[2:0]
Digital
LP Filter
LPF2
S/D Tap
6D
0
1
LOW_PASS_ON_6D
1
0
SLOPE_FDS
Wake-up
Activity /
Inactivity
Free-fall
Embedded
functions
FIFO
USER
OFFSET
0
1
USR_OFF_ON_OUT
USR_OFF_W
OFS_USR_[7:0]
1
0
USR_OFF_ON_WU
LPF1
Output (1)
®
HP_LPF2_XL_BW_[2:0]
HP_LPF2_XL_BW_[2:0]
1. The cutoff value of the LPF1 output is ODR/2 when the accelerometer is in high-performance mode. This
value is equal to 3100 Hz when the accelerometer is in low-power mode 1 (2 mean), 912 Hz in low-power
mode 2 (4 mean) or 431 Hz in low-power mode 3 (8 mean).
Note:
Embedded functions include finite state machine, machine learning core, pedometer, step detector and step
counter, significant motion detection, and tilt functions.
ISM330BX
Functionality
DS14588 - Rev 2
page 39/150



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