TSOP4856

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Optical Sensors can be used for a variety of applications, ranging from industrial automation to medical diagnosis. One common type of Optical Sensor is the Photo Detector, which can detect light or electromagnetic radiation. A particular type of Photo Detector is the Remote Receiver, which is used to detect electromagnetic radiation from a transmitter located at a distance.TSOP4856 is a type of Remote Receiver, designed for short-range infrared (IR) applications. It is a small and inexpensive component, ideal for many consumer, automotive and industrial applications. In this article, we will discuss its application field and working principle.

Application Field

TSOP4856 is most commonly used in consumer electronics, such as television remotes and gaming consoles. It is also used in automotive applications, such as keyless entry systems and rearview mirror dimming systems. Additionally, it is used in medical equipment and industrial automation systems.

Working Principle

TSOP4856 consists of a receiver that is sensitive to 38 kHz infrared signals. The receiver consists of a phototransistor that is covered by a protective layer. When an infrared signal is transmitted, the phototransistor detects the signal and generates an electrical current. This current is then amplified by an amplifier, which is connected to a microcontroller. The microcontroller then interprets the signal and takes the appropriate action.

TSOP4856 is sensitive to a range of pulse lengths, from 0.5 ms to 8 ms, and is able to ignore signal lengths outside of this range. This helps to reduce false positives or false negatives caused by background electromagnetic radiation.

Finally, the TSOP4856 is designed to provide a high degree of noise immunity. It is internally connected to an RC-filter, which reduces the effects of electrical noise from other components. The receiver also includes an overload and reset protection circuit, which provides extra immunity from power surges.

Conclusion

TSOP4856 is a type of Remote Receiver specifically designed for short-range infrared applications. It is small and inexpensive, and is ideal for use in consumer electronics, automotive systems, medical equipment, and industrial automation systems. Its working principle includes a phototransistor that detects infrared signals and amplifies them with an amplifier connected to a microcontroller. Additionally, TSOP4856 is designed to provide a high degree of noise immunity and overload and reset protection.

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