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BMX160 Datasheet(HTML) 3 Page - Bosch Sensortec GmbH

Part No. BMX160
Description  Small, low power 9-axis sensor
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Maker  BOSCH [Bosch Sensortec GmbH]
Homepage  https://www.bosch-sensortec.com
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BMX160 Datasheet(HTML) 3 Page - Bosch Sensortec GmbH

 
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BMX160
Data sheet
Page 3
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.
General Description
The BMX160 is a 9-axis sensor consisting of a state-of-the-art 3-axis, low-g accelerometer, a low
power 3-axis gyroscope and a 3-axis geomagnetic sensor. It has been designed for low power,
high precision 9-axis applications in mobile phones, tablets, wearable devices, remote controls,
game controllers, head-mounted devices and toys. Due to the small form factor of the compact
14-pin 2.5 × 3.0 × 0.95 mm3 LGA package, BMX160 can be ideally integrated into wearables like
smart watches or glasses for augmented reality. When accelerometer and gyroscope are in full
operation mode and the geomagnetic sensor in normal mode, power consumption is typically
1465 µA, enabling always-on applications in battery driven devices. The BMX160 offers a wide
VDD voltage range from 1.71 V to 3.6 V and a VDDIO range from 1.2 V to 3.6 V, allowing the BMX160
to be powered at 1.8 V for both VDD and VDDIO.
Due to its built-in timing unit to synchronize the sensor data, BMX160 is ideally suited for
immersive gaming and navigation applications, which require highly accurate sensor data fusion.
The BMX160 provides high precision sensor data together with the accurate timing of the
corresponding data. The timestamps have a resolution of only 39 µs.
The integrated 1024 byte FIFO buffer supports low power applications and prevents data loss in
non-real-time systems. The intelligent FIFO architecture allows dynamic reallocation of FIFO
space for accelerometer, gyroscope and magnetometer, respectively. For typical 9-DoF
applications, this is sufficient for approx. 0.5 s of data capture.
Like its predecessors, the BMX160 features an on-chip interrupt engine enabling low-power
motion-based context awareness. Examples of interrupts that can be issued in a power efficient
manner are: any- or no-motion detection, tap or double tap sensing, orientation detection, free-
fall or shock events. The BMX160 is Android 6.0 (Marshmallow) certified, and in the
implementation of the Significant Motion and Step Detector interrupts, each consumes less than
30 µA.
The smart built-in power management unit (PMU) can be configured, for example, to further lower
the power consumption by automatically sending the gyroscope temporarily into fast start-up
mode and waking it up again by internally using the any-motion interrupt of the accelerometer. By
allowing longer sleep times of the host, the PMU contributes to significant further power saving
on system level.


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