SY22306-S1 (SY3061-S1)

• Wide Operating Voltage Range:
•  - 1.7V to 3.6V Supply for I2C Interface
•  - 2.3V to 3.6V Sensor Power Supply
• Works Under All Light Sources, Including Sunlight
• Green Power:
•  - Less than 130μA Supply Current
•  - Less than 1μA Supply Current When Powered Down
• I2C (SMBus Compatible) Interface
• Temperature Compensation
• Ambient Light Sensing:
•  - Output Digital Counts Proportional to Lux
•  - Indoor Light Source Flicker Noise Rejection and IR Rejection
•  - Spectral Response Matching the Human Eye’s Photopic Vision
•  - Selectable 120/240/481/963/1927 Lux Range
• Side View Package:
•  - Package Size: 2.95mm x 1.25mm x 1.5mm
•  - Soldered on Both Top View and Side View

The SY22306-S1 is an ambient light sensor (ALS) with SMBus-compatible I²C interface. Communication to the device is accomplished through the fast I²C interface (up to 750 kHz) for easy connection to a microcontroller or embedded controller.

The ambient light sensor (ALS) has five operating ranges for adapting to different applications and various optical arrangements. The ALS reading (output data) is proportional to the ambient light; no additional data manipulation is required. It also has a built-in circuit to reject the flicker noise caused by indoor light sources. The most important feature of the ALS is that the spectral response is almost the same as the human eye’s photopic vision due to a well-engineered optical coating on the top of the photodiode; thus, a light source correction coefficient is unnecessary.