SY22315AS21-J01 (SY3135AS21-J01)

• Electrical Operation Performance:
•   -Power Supply Voltage: 1.7V - 2.0V
•   -Operating Current: 220μA
•   -Shutdown Current: Less Than 15μA
•   -Operating Temperature: -40°C to +85°C
• Ambient Light Sensing:
•   -Two Parallel 16-bit ADCs
•   -Programmable Integration Time (IT) for Both Normal and Fast Operation Modes
•   -Programmable Gain Settings Ranging From 1x to 512x
• Flicker Sensing:
•   -Full Scale of 10,000 Counts with a 1ms Integration Time 
•   -16-Bit Resolution When IT ≥6.25ms
• Programmable Integration Time Ranging from 6.25μs to 25.6ms
• Sensitivity Below 0.03 Lux/Count
• 512 Bytes FIFO, with Programmable Interrupt Threshold Levels
• Selectable FIFO Source, Allowing All ADC Data to Be Freely Directed to the FIFO
• BT Substrate with Transparent Molding Compound
• Package Size: 2.0mm×1.0mm×0.5mm

The SY22315AS21-J01 is an ultra-small ambient light sensor (ALS) featuring ultra-high sensitivity. Its fast integration time of less than 1ms makes it is ideal for applications where the sensor is placed under the OLED display, to eliminate the need for a separate display panel cutout, in cellphone and smart watches.

The SY22315AS21-J01 incorporates photodiode (PD) arrays with various coatings to achieve visible and full-spectrum sensing. It integrates two independent Analog-Digital-Converters (ADCs) that operate in parallel which provide synchronous digital count outputs. 

Its very short integration time enables synchronized readings during the display blanking period when using the VSYNC input to minimize the influence of the display during normal operation. The interrupt pin can be configured to trigger at different FIFO levels, which eliminates the need to poll sensor status. It features an SMBus compatible with the I2C interface, allowing for easy connection to a microcontroller.

The SY22315AS21-J01 is designed with a fast integration time, high signal-to-noise ratio (SNR) performance, a user-friendly interface, and a broad operating temperature range, making it ideal for applications underneath OLED displays.