ams Introduces Industry's Smallest Proximity Light Sensor, Integrating New Capabilities in Smallest Wireless Earbuds

     ams AG, the world's leading supplier of high-performance sensor solutions, recently launched the fully integrated proximity light sensor TMD2636, which is 30% smaller than the current application solution and is a true wireless stereo (TWS) Manufacturers of earplugs offer innovative added value.

      Darrell Benke, Strategic Program Director for the Integrated Optical Sensors business line at ams, said: "Using the TMD2636 proximity light sensor will provide TWS earbud manufacturers with increased product design flexibility, allowing customers to optimize product performance while reducing product size. , which further expands the range of functions supported by the product and differentiates customers' products in the fierce market competition. The world's smallest proximity light sensor released by ams enables manufacturers to take new ways to optimize designs and further extend battery life uptime, providing consumers with products with a better user experience.”

     One or more TMD2636 sensors provide reliable proximity detection, allowing the earbuds to automatically power on when inserted and automatically power off when removed. This maximizes power savings when the earbuds are not in use, while providing a great user experience.

     The TMD2636 sensor module integrates a 940nm infrared (IR) vertical cavity surface emitting laser (VCSEL), near-infrared photodetector, and complex control circuitry in a 2.0mm x 1.0mm x 0.35mm transparent fill package. The average power consumption of this sensor is 70µA in active mode and 0.7µA in sleep mode. The energy-saving benefits of the TMD2636 module are critical, especially for wireless earbuds with small battery capacity and size.

     The TMD2636 is based on several innovative ams technologies, including photodetector technology, optical package design, and factory testing and calibration. The TMD2636 is designed to provide excellent crosstalk rejection, high ambient light immunity and a highly efficient algorithm that provides accurate proximity detection results. In addition, TMD2636 can integrate two TMD2636s on the same I2C bus through the patented digital I2C interface, which simplifies the difficulty of dual-device system design.