5.3

Autonomous ranging mode

5.3.1

Measurement conditions

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

specified otherwise:

•

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

•

Targets used are Munsell N4.75 (17%) and Munsell N9.5 (88%).

•

AVDD is 2.8 V, IOVDD 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 ie 99.3% of measurements are within the specified

accuracy.

•

940 nm is equivalent to 5 kLux daylight.

•

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

•

The sensor relies on default calibration data.

•

The device is controlled thought 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 90 % detection rate gives 900 valid distances. The 100 other distances may be

outside the specification or flagged with an invalid target status.

5.3.2

Maximum ranging distance 4x4

The table below shows the maximum ranging capability of the VL53L7CX under different conditions. Refer to

Section 5.3.1 Measurement conditions for the general test conditions.

time 20 ms

Target reflectance

Zone

Dark (0 klux)

Ambient light (5 klux)

White target (88%)

Inner

Typical 3300 mm

Minimum 3200 mm

Typical 650 mm

Minimum 600 mm

Corner

Typical 3400 mm

Minimum 3000 mm

Typical 600 mm

Minimum 600 mm

Lite grey target (54%)

Inner

Typical 2750 mm

Minimum 2700 mm

Typical 600 mm

Minimum 600 mm

Corner

Typical 2750 mm

Minimum 2500 mm

Typical 600 mm

Minimum 550 mm

Grey target (17%)

Inner

Typical 1250 mm

Minimum 1200 mm

Typical 500 mm

Minimum 500 mm

Corner

Typical 1250 mm

Minimum 1150 mm

Typical 500 mm

Minimum 500 mm

The table below shows the maximum ranging capability of the VL53L7CX under different conditions. Refer to

Section 5.3.1 Measurement conditions for the general test conditions.

VL53L7CX

Autonomous ranging mode

DS13865 - Rev 3

page 22/40