Description

The Broadcom® AFBR-S50LV85D is a multipixel optical

distance and motion measurement sensor module that is

based on the optical Time-of-Flight principle. The

technology has been developed with a special focus on

applications that need the highest speed and accuracy at

medium distance ranges, with a small size and very low

power consumption.

Due to its ambient light suppression, use in outside

environments is possible in sunlight. The sensor accurately

measures against white, black, and colored surfaces as well

as metallic and retroreflective surfaces.

The module has an integrated infrared laser light source and

an internal clock source. A single 5.0V power supply is

required. Data is transferred using a digital Serial Peripheral

Interface (SPI) using standard 3.3V CMOS levels. For

system health monitoring, a reference pixel is used in

addition to the integrated voltage and temperature sensors.

Frame rates of up to 3 kHz are supported, depending on the

microcontroller, the data streaming mode, and the number

of evaluated pixels. For frame rates of up to 100 Hz, a dual

frequency (2f) mode is used to achieve an unambiguous

range of up to 100m.

Features

 Very fast measurement rates of up to 3 kHz

 Operation up to 200 klx

 Integrated calibrated clock source

 Accuracy error typically below ± 1

 Unambiguous range up to 100m in 2f mode

 Reference pixel for system health monitoring

 Laser Class 1 eye safe ready

Specifications

 Single voltage supply of 5V

 Typical current consumption of 33 mA

 Integrated 850-nm laser light source

 Typical optical peak output power of 40 mW

 Typical optical average output power < 0.6 mW

 Receiver with 32 pixels

 Field of view per pixel of 1.55° × 1.55°

 Transmitter beam width of 2° × 2° to illuminate typically

1 to 3 pixels

 Distance range up to 30m and beyond

 Operation temperature (ambient): –20°C to 70°C

 SPI digital interface up to 25 MHz

 Size without pins: L × W × H: 12.4 mm × 7.6 mm × 7.9 mm

Applications

 Distance measurement

 Human machine interfaces

 Robotics

 Automation and control

 Security surveillance

 Inventory monitoring

 Drone navigation