TSOP2138

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Optical sensors are a type of sensor used to detect radiation in the form of visible or infrared light. Photo detectors are one particular type of optical sensor and are characterized by their ability to convert light energy into electrical energy. Remote receivers are a form of photo detector used to detect light energy from remote sources and are often used for applications such as remote controls, security systems and telecommunication networks.

The TSOP2138 is an infrared remote receiver, designed to detect infrared signals from remote sources. The TSOP2138 is a highly integrated receiver which includes an IC chip and an infrared sensor, housed in a single miniature package. It has a wide range of application fields and is commonly used in entertainment electronics, smart home systems, remote control systems, security systems, and automotive electronics.

The TSOP2138 is capable of detecting a wide range of signal frequencies, from 10 KHz up to 36 KHz, making it suitable for a variety of infrared applications. It has a high sensitivity of -38dBm, which gives it the capability to detect weak signals. The TSOP2138 also has an amplifier circuit which allows the signal from the receiver to be amplified to the power output level required by the target application.

The working principle of the TSOP2138 is based on the photovoltaic effect. When an infrared signal is received, the signal is converted into electrical energy by the photodiode in the sensor. The electrical energy is then amplified by the amplifier circuit before being output by the IC chip. The TSOP2138 also includes a PWM decoder which is used to decode the output signal into a digital signal which can be used by the target application.

The TSOP2138 can be used in a wide range of applications, such as remote control systems, security systems, automotive electronics, and entertainment systems. In remote control systems, the TSOP2138 can be used to detect infrared signals from remote controls and convert them into digital signals which can be used to control the target application. In security systems, the TSOP2138 can be used to detect infrared signals from motion sensors or other sources and trigger an alarm system in response. The TSOP2138 is also widely used in automotive electronics for applications such as door locks, window controls, and alarm systems.

The TSOP2138 is a versatile infrared remote receiver, capable of detecting a wide range of frequencies and amplifying the signal to the required output levels. It is widely used in a variety of applications, from remote control systems to automotive electronics, making it an invaluable component for any system requiring remote sensing capabilities.

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