TSOP32138

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Optical Sensors refer to a class of sensors that rely on optical elements to measure physical parameters. A Photo Detector, as one type of Optical Sensors, is able to detects light or other electromagnetic radiation and generate electrical signals in response to the detected light or radiation. Remote Receiver is a kind of Photo Detector, which can receive signals from a remote location and convert them into electrical signals. In this article, we will discuss the application field and working principle of one kind of Photo Detector, the TSOP32138 Remote Receiver.

The TSOP32138 Remote Receiver is designed for applications such as infrared remote control systems. It is a three-pin Narrow Reticle Photomos Relay with built-in optical filter. With a wide operational voltage between 3.3V to 5V, TSOP32138 Remote Receiver can provide a high sensitivity of 8.8V/µW/cm2 at 940 and 976nm. Besides, the flat gain is around 18dB over the useful range. Thus, TSOP32138 Remote Receiver is a perfect choice for low voltage, low power consumption application, such as IR remote control systems.

The working principle of TSOP32138 Remote Receiver is to convert the infrared signal into electrical signals. This is achieved by using an optical filter and photomos relay. The optical filter is responsible for reducing the intensity of unwanted frequencies, leaving only the desired frequencies which is emitted by the IR transmitter that the receiver is tuned for. The photomos relay then captures the optical signal and converts it into an electrical signal which is then suitably amplified so the IR receiver is able to detect it. This electrical signal is then sent to the microcontroller, which is responsible for decoding the signal.

In summary, TSOP32138 Remote Receiver is a kind of photo detector designed for infrared remote control systems. Its characteristic features of wide operating voltage, low power consumption and high sensitivity make it a suitable choice for low voltage, low power consumption applications. The working principle of TSOP32138 Remote Receiver also involved an optical filter and photomos relay to convert infrared signal into electrical signals.

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