LSM6DSV16BX datasheet(3/148 Pages) STMICROELECTRONICS

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Overview

The LSM6DSV16BX is a system-in-package featuring a high-performance 3-axis digital accelerometer and 3-axis

digital gyroscope.

The LSM6DSV16BX 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 contextual awareness,

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

inactivity, stationary/motion detection and wakeup events. Machine Learning and Finite State Machine processing

allows moving some algorithms from the application processor to the LSM6DSV16BX sensor, enabling consistent

reduction of power consumption.

The LSM6DSV16BX supports main OS requirements, offering real, virtual and batch mode sensors. In

addition, the LSM6DSV16BX can efficiently run the sensor-related features specified in Android, saving

power and enabling faster reaction time. In particular, the LSM6DSV16BX has been designed to implement

hardware features such as significant motion detection, stationary/motion detection, tilt, pedometer functions and

timestamping.

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

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

Core 2 has been designed for audio acceleration data processing for bone conduction and speech-enhanced

applications. Data are available on the TDM interface at 8 kHz or 16 kHz.

The LSM6DSV16BX embeds a dedicated Core 3 for Qvar functionality which is an electrical potential sensor

able to measure the variation of the quasi electrostatic potential. The Qvar sensing channel can be used for

applications such as human motion detection.

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

so forth) allows overall power saving of the system.

Like the entire portfolio of MEMS sensor modules, the LSM6DSV16BX 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 LSM6DSV16BX embeds an analog hub which is able to connect an external analog input and convert it to a

digital signal for processing as well as advanced dedicated features like a finite state machine and data filtering

for motion processing.

The LSM6DSV16BX embeds Qvar functionality which is an electrostatic sensor able to measure the variation of

the quasi electrostatic potential. The Qvar sensing channel can be used for user interface applications like tap,

double-tap, triple-tap, long press, L/R – R/L swipe.

Human body motion is detected by the variation of the electric potential induced on electrodes by the continuous

redistribution of electrostatic charges during motion activities.

The LSM6DSV16BX is available in a small plastic land grid array (LGA) package of 2.5 x 3.0 x 0.71 mm to

address ultra-compact solutions.

LSM6DSV16BX

Overview

DS13771 - Rev 2

page 3/148

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