Data Sheet

Functional description VL53L0X
12/40 DocID029104 Rev 2
2.3.1 SPAD and temperature calibration
In order to optimize the dynamic of the system, the reference SPADs have to be calibrated.
Reference SPAD calibration needs to be done only once during the initial manufacturing
calibration, the calibration data should then be stored on the Host.
Temperature calibration is the calibration of two parameters (VHV and phase cal) which are
temperature dependent. These two parameters are used to set the device sensitivity.
Calibration should be performed during initial manufacturing calibration, it must be
performed again when temperature varies more than 8degC compared to the initial
calibration temperature.
For more details on SPAD and temperature calibration please refer to the VL53L0X API
User Manual.
2.3.2 Ranging offset calibration
Ranging offset can be characterized by the mean offset, which is the centering of the
measurement versus the real distance.
Offset calibration should be performed at factory for optimal performances (recommended
at 10cm). The offset calibration should take into account:
• Supply voltage and temperature
• Protective cover glass above VL53L0X module
Figure 7. Range offset
Actual Range
Measured range
p2p_offset
calibration