ams TMF8829 48x32 multi-zone Time-of-Flight sensor

Description

Product status: Pre-Production

The TMF8829 is a direct time-of-flight (dToF) sensor with configurable resolution of 8x8, 16x16, 32x32 & 48x32. The device is based on SPAD, TDC, and histogram technology and achieves a detection range of up to 11000 mm with an 80° field of view. All processing of the raw data is performed on-chip, and the TMF8829 provides distance information along with confidence values, signal amplitude, and ambient light on its interface. Internally, the TMF8829 uses dToF histograms and peak detection, and therefore, it is highly tolerant to smudges on the cover glass. Additionally, the TMF8829 can handle multiple objects per depth point simultaneously without degrading accuracy. It reports the distance of all depth points with a resolution of 0.25 mm. The device uses an I3C (I²C compatible) communication interface and a fully featured SPI interface for control and raw data streaming. A VBUS supply pin allows operation of the I²C/I3C or SPI with 1.2V, 1.8V, or 3V I/O supplies. Raw data streaming, including all algorithm peak detection results, allows further processing on the host for “AI-enabled” applications. The TMF8829 is a fully contained optical module measuring only 5.7 mm x 2.9 mm x 1.5 mm.

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Details

Features

  • Direct ToF (dToF) technology with high sensitivity SPAD detection
  • 10mm to 11,000mm distance sensing
  • Configurable 8x8, 16x16, 32x32 & 48x32 zones
  • 80° FOV (diagonal, aspect ratio 4:3); rectangular SPADs
  • Full internal processing
  • Raw data streaming including processed distance data due to fast I3C and SPI interface
  • 1cm minimum distance and 0.25 mm resolution
  • Multi-objects detection. Cover glass smudge tolerant
  • -40ºC to 85ºC temperature range
  • Module size 5.7 mm x 2.9 mm x 1.5 mm Smallest high resolution dToF sensor

Benefits

  • Delivers high SNR, wide dynamic range and no multi-path reflections
  • Long range high frequency measurements
  • Applicable to a wide range of applications from 8x8 long range mode to high resolution 48x32 mode
  • Matches autofocus region of interest of mobile phone cameras including wide angle camera
  • Off-load host processing power
  • Enables AI applications by providing high speed histogram data
  • Support macro range to telephoto range of mobile phone autofocus (LDAF)
  • dToF operation with up to 4 objects per depth point
  • Suitable for a wide range of commercial and industrial applications
  • Allow integrations in space constrained applications

Parameters

Sensor zones
multi
Number of detection zones
1536
Detection distance
max.
1100 cm
Wafer level optical filters
Yes
Field of view
80 °
Operating ambient temperature
min.
-40 °C
max.
85 °C
Supply voltage
min.
2.9 V
max.
3.6 V
3.3 V
Wavelength
940 nm
Package
OLGA18
Package dimension
l
5.7 mm
w
2.9 mm
h
1.5 mm
Interface
input
I²C
I³C
SPI (16MHz)
output
I²C
SPI
I³C

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