
Light-to-digital converter with proximity sensing, I2C Vbus = VDD interface
TSL2771
The TSL2771 family of devices provides both ambient light sensing (ALS) and proximity detection (when coupled with an external IR LED). The ALS approximates human eye response to light intensity under a variety of lighting conditions and through a variety of attenuation materials. The proximity detection feature allows a large dynamic range of operation for use in short distance detection behind dark glass such as in a cell phone or for longer distance measurements for applications such as presence detection for monitors or laptops. The programmable proximity detection enables continuous measurements across the entire range. In addition, an internal state machine provides the ability to put the device into a low power mode in between ALS and proximity measurements providing very low average power consumption.
(1) Brigen format which includes die layout database & annotated circuit extraction and hieratical circuit analysis schematics,
(2) PDF format of circuit analysis
(3) EDIF format data (only use for reference)
Partial Analog Circuit Analysis
- We can provide a brief report for your further evaluation. Please contact us and you will get it soon.
- The "Option" in the deliverables means you can buy it separately, and please contact us for further information.

