TMD4903 datasheet(2/86 Pages) OSRAM

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Datasheet, Public

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[v2-00] 2022-Nov-03

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TMD4903

Color and Proximity Sensor Module

with mobeam™ Barcode Emulation

and IR Remote Control

The TMD4903 features ambient light and color (RGB) sensing,

proximity detection and IRBeam optical pattern generator

capable of mobeam™ barcode emulation and IR remote control.

In addition, the device integrates an IR LED and advanced LED

driver, all within a low-profile and small footprint,

2.0mm x 5.0mm x 1.0mm package.

The Proximity sensing function synchronizes IR emission and

detection to sense proximity events. The architecture of the

engine features self-maximizing dynamic range, ambient light

subtraction, advanced crosstalk cancelation, 14-bit data

output, 32-dataset FIFO, and interrupt-driven I²C

communication. Sensitivity, power consumption, and noise can

be optimized with adjustable IR LED timing and power. The

proximity engine recognizes detect/release events and

produces a configurable interrupt whenever proximity result

crosses upper or lower threshold settings.

The Ambient Light and Color Sensing function provides Red,

Green, and Blue (RGB) ambient light sensing with a Clear

reference (C). The color diode array has a UV/IR blocking filter

and parallel ADCs to produce simultaneous 16-bit results. This

architecture accurately measures ambient light and enables the

calculation of illuminance, chromaticity, and color temperature

to manage display appearance.

The IRBeam pattern generator supports mobeam™ barcode

emulation and IR remote control. The engine features RAM for

pattern storage and specialized control logic that is tailored to

repetitively broadcast a barcode pattern using the integrated

LED or an external LED with a low side driver. The IRBeam engine

features adjustable timing, looping, and IR intensity to

maximize successful transmission. IRBeam is designed to

support all requirements for 1-D barcode transmission over IR

to point-of-sale (POS) terminals as well as IR remote control.

Ordering Information and Content Guide appear at end of

datasheet.

General Description

TMD4903 Datasheet(PDF) 2 Page - OSRAM GmbH

TMD4903 Datasheet(HTML) 2 Page - OSRAM GmbH

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