TSOP6138TT

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The TSOP6138TT is an optical remote receiver considered as one of the most popular and used devices in the industry. The device belongs to the devices class of optical sensors, and more particularly to the photo detector category and remote receivers sub-category. It offers a cost-effective solution to the problem of receiving signals from remote controllers by operating in the frequency range from 27 MHz to 500 MHz and having a wide range of 80 dbm receiving sensitivity.

The main application field of the TSOP6138TT opto-isolator is to provide an optical isolation and long-distance signal transmission. It is also used for the long-distance remote controls of the television, audio, and VCD systems and for automotive applications. automotives. The receiver can be used both as an encoder and as a decoder, allowing for multiple control signals to be received from a single remote control transmitter.

The working principle of the TSOP6138TT lies in the fact that it is an infrared (IR) LED driven by a high-frequency carrier signal. This IR LED is used to capture the signals transmitted by the contro remote control. These signals are then amplified and processed by the receiver. In the case of an encoder, the same logic holds but the reverse process is performed. This results in the receiver being able to convert the incoming signals into the desired output signal.

The photo detection element of the TSOP6138TT consists of a photodiode with wide IR band sensitivity and a matching lens to capture any weak signal transmitted from a long distance. The photo-detection element is then connected to a high-frequency amplifier and filter that boost the signal before being converted into the desired output. Finally, the amplified and filtered signal is fed to a frequency-synthesizing demodulator that is responsible for reconverting the incoming signal into its output form.

In conclusion, the TSOP6138TT is an opto-isolator belonging to the category of optical sensors, specifically the photo detectors and remote receivers sub-category. It is used to provide long-distance signal transmission, and is capable of receiving signals from a remote control transmitter. Its working principle relies on the use of a photodiode and a high-frequency amplifier. This allows it to convert the incoming signal into the desired output signal.

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