LSM6DSV320X datasheet(3/212 Pages) STMICROELECTRONICS

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Overview

The LSM6DSV320X is a system-in-package IMU featuring a high-performance 3-axis digital low-g accelerometer,

a 3-axis digital high-g accelerometer, and a 3-axis digital gyroscope.

The LSM6DSV320X delivers best-in-class motion sensing that can detect orientation and gestures in order to

empower application developers and consumers with features and capabilities that are more sophisticated than

simply orienting their devices to portrait and landscape mode.

The event-detection interrupts enable efficient and reliable motion tracking and context awareness, implementing

hardware recognition of free-fall events, 6D orientation, click and double-click sensing, activity or inactivity,

stationary/motion detection and wake-up events. Machine learning and finite state machine processing allow

moving some algorithms from the application processor to the LSM6DSV320X sensor, enabling consistent

reduction of power consumption.

The LSM6DSV320X supports the main OS requirements, offering real, virtual, and batch mode sensors. In

particular, the LSM6DSV320X has been designed to implement hardware features such as significant motion

detection, stationary/motion detection, tilt, pedometer functions, timestamping and to support the data acquisition

of external sensors.

The LSM6DSV320X offers hardware flexibility to connect the pins with different mode connections to external

sensors to expand functionalities such as adding a sensor hub, auxiliary SPI, and so forth.

The LSM6DSV320X offers advanced design flexibility for OIS and EIS applications. Both channels have a

dedicated processing path with independent filtering and enhanced EIS channel gyroscope data are read over the

primary interfaces I²C/ MIPI I3C® v1.1 / SPI.

Channel 1 has been designed for user interface data processing for motion tracking. Data are available on the

primary output of I²C / SPI / I3C for the accelerometer and gyroscope with independent ODR and FS.

Channel 2 has been designed for OIS applications. Data are available on the auxiliary SPI or I3C at 7.68 kHz with

accelerometer/gyroscope processing with independent FS at ±2 g to ±16 g (accelerometer) / ±250 dps to ±4000

dps (gyroscope). The accelerometer is also available as standalone with dedicated filtering.

Channel 3 has been designed for enhanced EIS. Data are available in free-run mode in the output registers or in

FIFO with dedicated tag and timestamp.

Channel 4 has been designed for high-g applications with accelerometer processing with independent FS at

±32 g to ±320 g.

Up to 4.5 KB of FIFO with compression and dynamic allocation of significant data (that is, external sensors,

timestamp, and so forth) allows overall power saving of the system.

The LSM6DSV320X embeds a sensor fusion low-power (SFLP) algorithm able to provide a 6-axis (accelerometer

+ gyroscope) game rotation vector represented as a quaternion. The X, Y, Z quaternion components are stored in

FIFO.

Like the entire portfolio of MEMS sensor modules, the LSM6DSV320X leverages the robust and mature in-house

manufacturing processes already used for the production of micromachined accelerometers and gyroscopes. The

various sensing elements are manufactured using specialized micromachining processes, while the IC interfaces

are developed using CMOS technology that allows the design of a dedicated circuit, which is trimmed to better

match the characteristics of the sensing element.

The LSM6DSV320X embeds advanced dedicated features like a finite state machine and data filtering for OIS,

EIS, and motion processing.

The LSM6DSV320X is available in a small plastic, land grid array (LGA) package of 2.5 x 3.0 x 0.83 mm to

address ultracompact solutions.

LSM6DSV320X

Overview

DS14623 - Rev 1

page 3/212

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