TCS3471EVM

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TCS3471EVM, or Texas Instruments\' color sensor evaluation board, is a complete platform for evaluating the performance of small color sensors. The device can be used with a wide variety of applications including automotive, medical, industrial, professional printing, machine vision, and consumer products. The evaluation board enables customers to evaluate the performance of their own color sensor for their intended application. In this article, we describe the application field and working principle of the TCS3471EVM.

Application Field

The TCS3471EVM is designed for applications requiring accurate color measurement. The device has a color depth of 12 bits, meaning it has 4,096 individual color values, providing better accuracy than 8-bit RGB systems. The device’s sensitive three-channel light to voltage conversion system is ideal for applications where lighting conditions change rapidly. It is also able to accurately measure light in low-light environments down to 0 lux without compromising accuracy. Its wide on-chip gain adjustment and variable integration time gives the user the flexibility to optimize the measurements for a wide variety of applications.

TCS3471EVM is an ideal solution for applications involving paint matching, materials identification, object identification, identification of hazardous materials, and color calibration. In addition, the device is ideal for medical diagnostics, ophthalmology, vision therapy, and astronomy. This evaluation board provides the user with the ability to accurately and consistently measure the color of objects, enabling applications that require accurate color reproduction and recognition.

Working Principle

The TCS3471EVM works with a three-channel light-to-voltage conversion system. The system uses a red, green, and blue (RGB) LED array to capture light signals from different spectral regions (red, green, and blue). The captured RGB signals are then converted to an analog voltage by the light-to-voltage conversion system. This analog voltage output is then digitized using an Analog-to-Digital Converter (ADC) and converted into a 12-digit digital code. This digital code represents the color of the object being measured.

An on-board microcontroller is used to configure the device’s settings and read the measurements. The TCS3471EVM also features an on-board Serial Peripheral Interface (SPI) for easy communications between the device and the application. An external controller, such as a computer or a microcontroller, can be connected to the evaluation board via a USB connection.

Lastly, the evaluation board also contains a power supply, isolation circuitry, driver ICs, and other components to ensure the device is properly powered and performs optimally. The board also includes several power rails for the microcontroller, the LED array, and the analog-to-digital converters, which ensures that all the components have the appropriate power supply.

Conclusion

The TCS3471EVM provides a complete platform for evaluating the performance of small color sensors. The device’s sensitive three-channel light-to-voltage conversion system is ideal for applications where lighting conditions change rapidly. The evaluation board enables users to accurately and consistently measure the color of objects, enabling applications that require accurate color reproduction and recognition. Its wide on-chip gain adjustment and variable integration time gives the user the flexibility to optimize the measurements for a wide variety of applications.

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