Turn Light Into Frequency

    May 20, 2004
    The TSL237 is a light-to-frequency converter featuring a dynamic range of 5,000,000 to 1, letting it capture light levels to 0.00002 lux.

    It produces a squarewave output signal with frequency proportional to light intensity that interfaces directly to a microcontroller, DSP, or counter. Providing 16-bit resolution, it eliminates the need for a/d converters and amplifiers. Applications include automotive sensors, color calibration, and lighting control.

    Taos Inc.,
    800 Jupiter Rd., Suite 205, Plano, TX 75074,
    (972) 673-0759,
    www.taosinc.com

     

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