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SY22312-H2

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Light Sensor with Frequency Output
Datasheet
SY22312-H2 Light Sensor with Frequency Output Datasheet
    Part numberSY22312-H2
    FunctionLight Sensor with Frequency Output
    Vdd (min)(V)2.7
    Vdd (max)(V)3.6
    VI2C (typ)(V)
    Idd (typ) (μA)
    Sensitivity-R @100ms (mLux/count)
    Sensitivity-G @100ms (mLux/count)
    Sensitivity-B @100ms (mLux/count)
    Flicker sample rate (max)(kHz)
    Flicker FIFO (Bytes)
    Emitter
    Package size (mm)DIP4646-3pin
    Operating temperature range(°C)
    • High-resolution Conversion of Light Intensity to Frequency without External Components
    • Low Dark Frequency     <1Hz at 50°C
    • Single-supply Operation    2.7V to 3.6V
    • Interfaces Directly to a Microcontroller
    • RoHS Compliant

    SY22312-H2 combines a photodiode and a current-to-frequency converter circuit on a single chip.

    The output of SY22312-H2 is a square wave (50% duty cycle) with a frequency proportional to the light intensity on the photodiode. This digital output allows for a direct interface to a microcontroller or other logic circuitry. The device has been temperature-compensated for the ultraviolet-to-visible light with wavelengths in the range of 320nm to 700nm, with a peak sensitivity around 600nm.

    SY22312-H2 operates at -40°C to 85°C and is available in a compact side-looker package.

    Technical Documentation