6.3

Autonomous ranging mode

6.3.1

Measurement conditions

The following criteria and test conditions apply to all the characterization results detailed in this section unless

specified otherwise:

•

The specified target fills 100% of the FoV of the device (in all zones).

•

Targets used are Munsell N4.75 (17%), Munsell N8.25 (54%), and Munsell N9.5 (88%).

•

AVDD is 3.3 V, IOVDD is 1.8 V, and CORE_1V8 is 1.8 V.

•

Nominal ambient temperature is 23°C.

•

Maximum range capability is based on a 90% detection rate. (1)

•

Range accuracy figures are based on 2.7 sigma. This means that 99.3% of measurements are within the

specified accuracy.

•

Tests are performed in the dark and at 2 W/m2 target illumination (940 nm). A 2 W/m2 target irradiance at

940 nm is equivalent to 5 kLux daylight.

•

All tests are performed without cover glasses with a crosstalk margin set to 0 kcps.

•

The sensor relies on default calibration data.

•

The device is controlled through the API using the default driver settings.

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

example, taking 1000 measurements with a 90% detection rate, gives 900 valid distances. The 100 other distances may be

outside the specification, or flagged with an invalid target status.

6.3.2

Maximum ranging distance 4x4

Table 19. Maximum ranging capabilities when ranging with autonomous mode at 1 Hz – 4x4 – integration

time 5 ms shows the maximum ranging capability of the VL53L8CX under different conditions. Refer to

Section 6.2.1 Measurement conditions for the general test conditions.

Table 19. Maximum ranging capabilities when ranging with autonomous mode at 1 Hz – 4x4 – integration

time 5 ms

Target reflectance level. Full

FoV (reflectance %)

Zone

Dark

Ambient light (5 kLux)

White target (88%)

Inner

Typical 4000 mm

Minimum 4000 mm

Typical 1550 mm

Minimum 1100 mm

Corner

Typical 4000 mm

Minimum 4000 mm

Typical 1400 mm

Minimum 1100 mm

Light gray target (54%)

Inner

Typical 4000 mm

Minimum 4000 mm

Typical 1450 mm

Minimum 1100 mm

Corner

Typical 3700 mm

Minimum 3500 mm

Typical 1300 mm

Minimum 1100 mm

Gray target (17%)

Inner

Typical 3000 mm

Minimum 3000 mm

Typical 1350 mm

Minimum 1100 mm

Corner

Typical 2550 mm

Minimum 2400 mm

Typical 1200 mm

Minimum 1000 mm

VL53L8CX

Autonomous ranging mode

DS14161 - Rev 2

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