ماژول تشخیص رنگ TCS3200

ماژول تشخیص رنگ TCS3200

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ماژول تشخیص رنگ TCS3200
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ماژول تشخیص رنگ TCS3200

ماژول تشخیص رنگ TCS3200

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The TCS3200 is a programmable color-to-frequency converter from TAOS that integrates a configurable silicon photodiode with a current-frequency converter on a single CMOS circuit while integrating red and green (RGB) on a single chip ) The three filters are the industry’s first RGB color sensor with digital compatible interface. The TCS3200 ‘s output signal is digital and can drive standard TTL or CMOS logic inputs, so it can be directly connected to a microprocessor or other logic circuit , It is possible to realize the conversion accuracy of 10 bits or more per color channel, and thus the A / D conversion circuit is no longer required to make the circuit easier .
The TCS3200 is available in an 8-pin SOIC surface mount package with 64 photodiodes integrated on a single chip. These diodes are divided into four types, with 16 photodiodes with a red filter; 16 photodiodes with green Filter; 16 photodiodes with blue filter, and the remaining 16 without any filter, through all the optical information, these photodiodes in the chip is cross-arranged, to minimize the incident light The non-uniformity of the radiation, thereby increasing the accuracy of color recognition; the other hand, the same color of the 16 photodiode is connected in parallel, evenly distributed in the diode array, you can eliminate the color position error. When working, the two filters are used to dynamically select the desired filter. The typical output frequency range of the sensor is from 2Hz to 500kHz. The user can also select 100%, 20% or more by two programmable pins. 2% output scale factor, or power off mode. The output scale factor enables the output of the sensor to accommodate different measuring ranges and improves its adaptability. For example, when a low-speed frequency counter is used, a small calibration value can be selected to match the output frequency of the TCS3200 to the counter.
When the incident light is projected onto the TCS3200, different filters can be selected by different combinations of the photodiode control pins S2, S3. After passing the current to the frequency converter, different square wave (duty cycle is 50%) is output. , Different colors and light intensity corresponding to different frequencies of the square wave; also through the output calibration control pin S0, S1, select a different output scale factor, the output frequency range to adjust to meet the different needs.
The following brief description of TCS3200 chip pin function and some of its combination options. S0, S1 is used to select the output scale factor or power off mode; S2, S3 is used to select the type of filter; OE is the frequency output enable pin, can control the output state, when there are multiple chip pins When the output pin of the microprocessor is also available as a chip select signal, OUT is the frequency output pin, GND is the chip’s ground pin, VCC provides the operating voltage for the chip, Table 1 is available for S0, S1 and S2, S3 combination.

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