TSOP77338TR

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Optical Sensors have become essential in modern technological applications, ranging from medical devices to smartphones and robotic guidance systems. In particular, Photo Detectors, which measure the intensity of light that reaches them from remote sources, are an especially important component of these applications. The TSOP77338TR is a highly reliable photo detector that is part of the Infrared Remote Receiver category of Photo Detectors.

Application Field

The TSOP77338TR is a remote receiver designed for use in remote controls. It is used to receive modulated infrared light signals from a transmitter and detect the presence of the light signal. This photo detector is especially applicable in the consumer electronics industry, particularly in the design of television remote controls. It is also useful in complex sensing applications such as non-contact switch designs.

Working Principle

The TSOP77338TR utilizes the principle of phototransduction: when a photon of sufficient energy strikes the photo detector, the energy is absorbed and converted into an electrical current. This current is then processed by the photodiode and proportional signal is used to detect the presence of a remote infrared transmitter. The operating wavelength of the device is between 800nm and 950nm, giving it a wide range of usability.

The TSOP77338TR is also inherently resistant to certain forms of interference. It has a low intermodulation distortion (IMD) that is more than 50dB below the signal level, reducing the chances of erroneous signal detections. Additionally, it has an adjustable level of sensitivity in order to threshold the desired signal and accurately rule out noise that could lead to false indications.

The TSOP77338TR includes an integrated output logic circuit to create a digital output signal, meaning that it can be connected to digital circuitry. This makes it convenient to use in complex applications, and as such, the device has become popular for various consumer and industrial applications.

Conclusion

The TSOP77338TR is a highly reliable optical sensor that is designed to be used as a remote receiver in consumer electronic applications and sensor systems. Through the principle of phototransduction, it is able to detect the presence of an infrared transmitter and provide an output signal for other components to process. Additionally, it is inherently resistant to certain disturbances and has a broad range of operating wavelengths.

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