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TMD3721 Advanced ALS/Color and Proximity Sensor Module

for Behind OLED Applications


  • Integrated factory calibrated 940nm IR VCSEL
  • Display synchronization with highly programmable Proximity Start Delay (PSD)
  • Crosstalk and ambient light cancellation
  • Optimized sensitivity and noise level
  • Wide configuration range
  • Red, green, blue and clear ALS channels with improved sensitivity
  • Highly programmabe gain and integration time
  • Display synchronization with highly programmable ALS Start Delay (ASD)
  • 737kHz ALS clock rate
  • 1KB FIFO
  • 1.8V power supply with 1.8V I2C bus
  • Configurable sleep mode
  • Interrupt driven device
  • Proximity saturation flag
  • Digital and analog ALS saturation flags
  • VSYNC status check
  • Detection Range 3cm (detection) - 5cm (release)


  • Proximity detection behind OLED displays
  • Ambient light sensing behind OLED displays
  • Low power consumption
  • Integrated status checking for all functions

Product parameters

Supply Voltage [V] 1.7 - 1.98
I²C Bus 1.8V
Programmable Gain, Integration Time, Interrupt
Integrated Capabilities Proximity Emitter Driver, VCSEL, Photodetector
Recommended Operating Distances 30mm
Temperature Range [°C] -30 to 85
Package OLGA, pin count 8

General description

The TMD3721 features ambient light, color (RGB) sensing and proximity detection. The device integrates an IR VCSEL and an advanced VCSEL driver within a compact 4.65mm x 1.86mm x 0.90mm OLGA package.

This product suits for the following applications:

  • Color and proximity detection for mobile phones and other applications


Title Category Headline Buy
TMD3721 EVM Application Board Evaluation Kit for TMD3721

Technical documents

Type Description Language
Datasheet TMD3721 datasheet English
Special Datasheet TMD3721 Short Datasheet English

Other information

Type Description Language
Block Diagram TMD3721 Block Diagram
Image TMD3721 Top View No Marking lo-res
Image TMD3721 Perspective View No Marking lo-res
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