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TIDA-010021

Wide-range (120° FoV at 1.6 meters) proximity sensing reference design with immunity to sunlight

Design files

TIDA-010021

Design files

Overview

Proximity sensing with wide field-of-view (FoV) is getting more and more popular and important for people detection in many applications. This reference design uses optical time-of-flight (ToF) techniques to build small and cost-effective proximity sensor systems. A single proximity and distance sensor AFE (OPT3101) with three external NIR LEDs, and one photodiode covers a total 120° wide FoV and outputs accurate distance of people activity.

Features
  • 3 NIR emitters support up to 3 zones of detection with a single OPT3101
  • Total system field-of-view (FoV) of 120° is covered by three LED emitters and one photodiode
  • Detection range up to 1.5 meters without lens
  • Adaptive HDR allows measurement insensitive to object color and reflectivity and supports operation under high ambient condition (outdoor and indoor conditions)
  • Proximity sensing and direct distance measurement output with accuracy of ±10% 
  • Exempt group lamp classification LED as emitter
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDA-010021
TIDUEH5.PDF (2562 K)

Reference design overview and verified performance test data

download Schematic — TIDA-010021
TIDRY72.ZIP (600 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDA-010021
TIDRY73.ZIP (102 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Assembly drawing — TIDA-010021
TIDRY74.ZIP (142 K)

Detailed overview of design layout for component placement

download CAD/CAE symbol — TIDA-010021
TIDRY76.ZIP (993 K)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDA-010021
TIDCF47.ZIP (4352 K)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDA-010021
TIDRY75.ZIP (714 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Linear & low-dropout (LDO) regulators

TLV702 — 300-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR2433 — 16 MHz MCU with 16KB FRAM, 4KB SRAM, 10-bit ADC, UART/SPI/I2C, timer

Data sheet: PDF | HTML
Proximity sensors

OPT3101 — ToF-based long-range proximity and distance sensor analog front end (AFE)

Data sheet: PDF | HTML
RGB LED drivers

TLC59283 — 16 channel constant current LED driver with pre-charge FET

Data sheet: PDF | HTML

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Software

Technical documentation

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Type Title Date
* Design guide Wide-Range (120° FoV at 1.6 Meters) Proximity Sensing Ref. Des. Sunlight Immunit Dec. 19, 2018

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