TSOP75338TR

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Optical Sensors - Photo Detectors - Remote Receivers

The TSOP75338TR is a highly versatile remote receiver intended for infrared (IR) remote control systems. It is a PIN diode and preamplifier assembly which operates at a wavelength of 940nm; it performs signal demodulation that is commonly used in IR remote control systems. It has a high sensitivity, wide operating voltage, low power consumption and low noise values which make it ideal for use in low power, miniature, battery powered applications requiring prolonged operation.

The TSOP75338TR is an optoelectronic device consisting of a PIN photodiode, an open collector output buffer amplifier, and an internal filter tuned to the exact frequency of the remote control system. The integrated filter is designed to eliminate interference from ambient light or other nearby IR sources that operate at off signal frequencies. The photodiode and preamplifier are sensitive to the light amplitude of the modulated IR source, like a remote control, and use the varying light levels as input signals for the modulation circuit. The amplified signals are then delivered to the internal bandpass filter which only allows signals with the desired frequency to be passed. These signals are then converted to digital format and delivered to the output pin.

The TSOP75338TR has a maximum supply voltage of 7V DC, with a current rating of 10mA. It is built to be used as a receiving system for NEC IR protocols and works best with a modulation frequency of 38kHz, however it can also operate at a wide range of modulation frequencies, making it compatible with many IR remote control systems. The device also has an improved shielding against radiation and reflection, plus it uses reverse polarity protection which ensures that any voltage applied with wrong polarity will not result in a short circuit.

TSOP75338TR can be used in applications such as remote control devices, especially those utilizing an IR protocol like NEC. It can be used in television remote controls, or remote control gaming systems, as it is very sensitive and can operate at ultra low powers. The device can also be used in wireless sensing applications such as presence sensing or count sensing. Such applications ony require a single- or low-channel, long-range, and digital contactless device to detect objects or people as they pass by. TSOP receives and manipulates the digital transmission from the IR source and sends it to the required device.

In summary, the TSOP75338TR is a highly versatile and reliable remote receiver intended for IR systems. It is built to be used with NEC IR protocols, however can operate at different frequency bands with ease and accuracy. It can be used in several applications such as remote control devices, TVs, gaming systems, and wireless presence sensing for people or objects. It is a very useful and reliable device, and is useful in applications requiring low power, extended runtime, and immunity from interference.

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