The recommended PCB layout for the FXLS8471QR1 involves placing the device near the center of the PCB, with the sensitive axis (Z-axis) perpendicular to the PCB. A solid ground plane underneath the device is also recommended to reduce noise and improve performance.
The FXLS8471QR1 does not require calibration in the classical sense. However, it is recommended to perform a zero-g offset calibration by taking the average of multiple readings at zero-g acceleration to determine the device's offset voltage. This value can then be subtracted from subsequent readings to improve accuracy.
The FXLS8471QR1 has a maximum acceleration range of ±8g. However, it can be configured to measure accelerations up to ±16g or ±32g by adjusting the sensitivity setting.
The FXLS8471QR1 has a digital SPI interface that can be connected to a microcontroller. The device requires a 1.8V to 3.6V power supply, and the SPI interface operates at a maximum clock frequency of 10 MHz.
The FXLS8471QR1 has a typical current consumption of 140 μA in normal mode and 0.5 μA in standby mode. The device also has a low-power mode that reduces current consumption to 45 μA.
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