HK0103 is a high-precision 12bit digital three-axis acceleration sensor chip with richer built-in functions, lower power consumption, smaller size and more accurate measurement.

The chip communicates with the MCU through the IC²/SPI interface, and the acceleration measurement data is obtained by interrupt or query. INT1 and INT2 interrupt pins provide a variety of internal automatic detection of interrupt signals, suitable for a variety of motion detection occasions, interrupt sources include 6D/4D direction detection interrupt signal, free fall detection interrupt signal, sleep and wake detection interrupt signal, click and double-click detection interrupt signal. The chip has a built-in high-precision calibration module to accurately compensate the offset error and gain error of the sensor. Four adjustable full-range measurement ranges of 2G, 4G, 8G and 16G allow flexible measurement of external acceleration, with output data rates selectable between 1HZ and 400HZ.

The built-in self-test function of the chip allows the customer to check the system function during the system test, eliminating the complicated turntable test. The built-in product tilt calibration function of the chip compensates for the tilt caused by the installation of patches and boards, does not occupy system resources, and the upgrade of system files does not affect sensor parameters.

Key features:

• Wide voltage range 1.71V-3.6V

• 1.8V compatible digital IO port

• Supply Current Down to 2µA in Low-Power Mode

• ± 2G/± 4G/± 8G/± 16G Dynamic Full Range

• 12bit valid data (HR)

• IC²/SPI Digital Output Interface

• 6D/4D direction detection

• Free Fall Detection

• Click double-click detection and motion detection

• Programmable Interrupt Generation Circuit

• Embedded self-test function

• Embedded FIFO

• 10000g high G resistance

Product specification classification

Application areas:Flat panel display, bracelet, mobile phone, somatosensory remote control, navigator

Internal Block Diagram: