Details, datasheet, quote on part number: TMG49033

ams and RF Digital have teamed up to produce sensor products for the Internet of Things (IoT) world. ams’ TMG4903 is an ambient light and color (RGB) sensor in a very small 8-SMD (2.0 mm x 5.0 mm) package that has a temperature range of -30ºC to +85ºC. The TMG4903 takes a 1.7 V to 2.0 V input with low output terminal current of 20 mA. RF Digital’s Simblee™ Bluetooth ecosystem provides bidirectional communication needed for today's connected world. The Simblee platform offers connectivity to the Cloud for a variety of sensors which is ideal for our connected world today. Simblee is fully certified with FFC/IC and other agencies. The RFD77311 is an Arduino™ compatible sensor shield and the RFD77808 is a factory programmed kit; both are designed for the ambient light and color (RGB) TMG4903 sensor.

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Features, Applications
Gesture, Color and Proximity Sensor Module with mobeamTM Barcode Emulation and IR Remote Control

The TMG4903 features ambient light and color (RGB) sensing, proximity detection, and IRBeam optical pattern generator capable of mobeamTM barcode emulation and IR remote control in parallel. In addition, the device integrates an IR LED and advanced LED driver, all within a low-profile and small footprint, x 1.0mm package. The Gesture and Proximity sensing function synchronizes IR emission and detection to sense gesture and proximity events. The architecture of the engine features automatic high sample rate activation, 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 gesture engine is capable of 3D detection of motion and position. Gesture interrupts are configurable to reduce I²C communication load.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 mobeamTM 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.

The benefits and features of TMG4903, Gesture, Color and Proximity Sensor Module with mobeamTM Barcode Emulation and IR Remote Control are listed below: Figure 1: Added Value of Using TMG4903


Automatic sample rate adjustment (1) Self-maximizing dynamic range (2) 2D and 3D gesture detect Ambient light rejection Advanced crosstalk compensation AFE saturation flag Programmable LED driver Interrupt-driven I²C communication Variable sensitivity Designed to operate behind inked glass UV/IR blocking filter Programmable gain and integration time 6.7M:1 dynamic range by gain adjustment only Interrupt-driven I²C communication

mobeamTM support Universal remote control support Interrupt-driven I²C communication Calibrated emission and response Invisible 950nm emission 1.8V operation

Note(s) and/or Footnote(s): 1. While an object is detected, the sample rate increases automatically to improve response. 2. Device sensitivity is automatically adjusted based on reflected response to support a wide detection distance.


The TMG4903 applications include: Gesture detection Color sensing Ambient light sensing Cell phone touch screen disable Mechanical switch replacement 1D bar code emulation Universal remote control

The functional blocks of this device for reference are shown below: Figure 2: TMG4903 Block Diagram


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