5

Ranging performances

5.1

Measurement conditions

In all the measurement tables of this document, it is considered that:

•

All ranging performances are measured with the target covering the full FoV.

•

Charts used as targets are: gray (17% reflectance, N4.74 Munsell) and white (88% reflectance N9.5

Munsell).

•

Nominal voltage is 2.8 V and temperature is 23°C.

•

The device is controlled through the driver using the default settings (refer to the user manual for driver

settings description).

•

Indoor (no IR) means there is no contribution of light in the band 940 nm ± 30 nm

•

Outdoor overcast corresponds to an ambient light level of 10 kcps/SPAD. For reference, this corresponds to

a 1.2 W/m2 at 940 nm following the AM1.5G spectrum and is equivalent to 5 kLux daylight as reflected by a

gray 17% chart at 40 cm.

•

No cover glass is present.

•

Typical samples are used.

•

Offset correction made at 100 mm from sensor with gray 17% target.

5.2

Minimum ranging distance

The minimum detection distance is 0 mm. The minimum ranging distance with a linear response is 1 mm.

5.3

Maximum ranging distance

The following table shows the ranging specification for the VL53L4CD bare module, without cover glass, at room

temperature (23°C), with nominal voltage (2.8 V) and full FoV covered.

Table 14. Max. ranging capabilities with 33 ms timing budget

Target reflectance level, full FoV

(reflectance %)

Indoor

(detection rate %)

Outdoor overcast

(detection rate %)

White target (88%)

Typical: 1200 mm @ 90% min

Typical: 1300 mm @ 50% min

Typical: 550 mm @ 90% min

Typical: 600 mm @ 50% min

Gray target (17%)

Typical: 450 mm @ 90% min

Typical: 475 mm @ 50% min

Typical: 400 mm @ 90% min

Typical: 450 mm @ 50% min

Detection rate is a statistical value indicating the worst case percentage of measurements that return a valid

ranging. For example, taking 1000 measurements with 90% detection rate gives 900 valid distances. The 100

other distances may be outside of the specification and are flagged with an error status.

VL53L4CD

Ranging performances

DS13812 - Rev 5

page 18/37