FXLS8471Q datasheet(24/75 Pages) FREESCALE

24 / 75 page

FXLS8471Q

Sensors

Freescale Semiconductor, Inc.

8.8

Orientation detection

FXLS8471Q has an embedded orientation detection algorithm with the ability to detect all six orientations. The transition angles

and hysteresis are programmable, allowing for a smooth transition between portrait and landscape orientations.

The angle at which the device no longer detects the orientation change is referred to as the “Z-lockout angle”. The device operates

down to 29° from the flat position. All angles are accurate to ±2°.

For further information on the orientation detection function refer to Freescale application note, AN4068.

8.9

Acceleration Vector-Magnitude detection

FXLS8471Q incorporates an acceleration vector-magnitude change detection block that can be configured to generate an

interrupt when the acceleration magnitude exceeds a preset threshold for a programmed debounce time. The function can be

configured to operate in absolute or relative modes, and can also act as a wake to sleep/sleep to wake source. This function is

useful for detecting acceleration transients when operated in absolute mode, or for detecting changes in orientation when

operated in relative mode, refer to Freescale application note AN4692.

FXLS8471Q bảng dữ liệu(PDF) 24 Page - Freescale Semiconductor, Inc