TSL2560T

AMS  TSL2560T  光-数字转接连接器, I2C

The is a light-to-digital Converter that transforms light intensity to a digital signal output capable of direct SMBus interface. This converter combines one broadband photodiode visible plus infrared and one infrared-responding photodiode on a single CMOS integrated circuit capable of providing a near-photopic response over an effective 20-bit dynamic range. Two integrating ADCs convert the photodiode currents to a digital output that represents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance in lux is derived using an empirical formula to approximate the human eye response. This device permits an SMB-alert style interrupt that remains asserted until the firmware clears it.

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Approximates human eye response

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Programmable interrupt function with user-defined upper and lower threshold settings

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Programmable analogue gain and integration time supporting 1000000-to-1 dynamic range

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Automatically rejects 50/60Hz lighting ripple

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Low active power 0.75mW typical with power down mode

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Reduces micro-processor interrupt overhead

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Digital interface is less susceptible to noise

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Reduces board space requirements while simplifying designs