TSOP38156

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Optical Sensors - Photo Detectors - Remote Receiver

The TSOP38156 is an example of a remote receiver, which falls into the category of Photo Detectors in the larger field of Optical Sensors. Optical Sensors are the fundamental factor in many technologies, from industrial monitoring all the way to light detection and ranging (LiDAR) systems. This article will be discussing the application field and working principle of the TSOP38156.

Application Field

The TSOP38156, as identified by its datasheet, can be used for remote control signal processing in appliances, toys and gaming, automotive, industry and household, as well as medical equipment. As such, it is considered a basic device for applications in which reliable IR signals need to be received and processed in a secure and efficient way.

In particular, the TSOP38156 is particularly suitable for applications such as:

• Remote control systems
• IR data communication protocols
• Ambient light & infrared illumination systems
• Bar code scanning systems
• QR-Code recognition systems
• Sound detection systems

Working Principle

The TSOP38156 operates using a light-sensitive element and a power amplifier. The working principle goes as follows:

• The LED at the remote emitter transmits a modulated infrared beam when triggered by a signal from the user’s handset.
• The infrared light is received by the TSOP38156’s light-sensitive element, which is then amplified to a signal level.
• The amplified signal is then compared with an internally stored reference signal of the same frequency and phase by an on-chip comparator.
• When the received signal matches the reference signal, the comparator then outputs a signal with the correct timing and synchronism.
• The output signal can then be connected to the specific application’s logical circuit to generate a control signal.

By using a light-sensitive element and an amplifier as its main parts, the TSOP38156 is able to detect and process multiple signals from the same remote emitter, due to its generous dynamic range. It is also able to detect infrared signals over a wide range of wavelengths, making it an extremely reliable device. Furthermore, the TSOP38156 is designed to reduce false triggering from external light sources, enabling the detection of a signal with great accuracy.

Conclusion

In summary, the TSOP38156 is a remote receiver specifically designed for applications where infrared signals need to be received and processed in an efficient and secure way. It works by using a light-sensitive element and a power amplifier to detect infrared signals over a wide range of wavelengths and to reduce false triggering from external light sources. It is not only able to detect multiple signals from the same remote emitter but also provides accurate signal detection. As such, it is a reliable device for applications in electronics, industrial, automotive, and medical industries who rely on reliable and secure infrared signal detection.

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