The APDS-9930 is a digital ambient light and proximity sensor from Broadcom. This integrated module combines an IR LED and proximity detector, ambient light sensor (ALS), and an I2C interface in a single package. The proximity detection feature is commonly used for detecting object closeness, while the ambient light sensing feature measures the intensity of light in the environment.

Applications:

• Mobile Phones
• Tablets
• Notebook Computers
• Consumer Electronics
• Industrial Automation

Features:

• Integrated Ambient Light and Proximity Sensor
• IR LED and Proximity Detector
• Ambient Light Sensing (ALS) with I2C Interface
• Programmable Interrupts
• Proximity Offset Adjustment

Benefits:

• Enables automatic screen dimming based on ambient light conditions.
• Provides proximity detection for activating or deactivating features based on object closeness.
• Reduces power consumption by turning off the display when not in use.
• Simplifies system design with a single, integrated sensor module.
• Offers accurate and reliable light and proximity measurements.

Additional Details:

The APDS-9930 operates with a supply voltage range of typically 2.8V to 3.3V and communicates through the I2C serial interface. It features programmable interrupt thresholds for both ALS and proximity detection, allowing the host controller to be notified only when significant changes occur. The sensor also includes an offset adjustment for proximity measurements to compensate for variations in the sensor or environment. The ALS function provides a digital output proportional to the ambient light level, which can be used to adjust display brightness or other lighting-related parameters. Detailed specifications, including sensitivity, accuracy, and power consumption, can be found in the Broadcom datasheet for the APDS-9930. Proper PCB layout and component selection are essential for optimal performance. It's important to follow Broadcom's recommended application guidelines to ensure reliable operation and accurate measurements.