TSOP77236TT

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A TSOP77236TT is an infrared (IR) receiver for remote control systems. It is a part of the TSOP77000 series of miniaturized receivers from Vishay. It is paired with the TSAL6100 emitting diode used for remote control systems such as TVs, VCRs, and DVD players. The TSOP77236TT is an 18-pin package, and has low power consumption, making it suitable for battery-powered applications. It is operated by a 3–5 V supply voltage and is a digital output device.

Application Field

The TSOP77236TT is commonly used in remote control systems for consumer electronics like TVs, VCRs, DVD players, and microwave ovens. Since it has a low supply voltage and low power consumption, it is also often used in battery-powered applications such as portable electronic appliances, games, and toys. The device is capable of receiving modulated IR signals up to a range of 10 m, and is immune to disturbances from sunlight and artificial light.

Working Principle

The TSOP77236TT comprises an integrated photo detector, preamplifier and digital demodulator. It is also designed to provide immunity to disturbances from sunlight and artificial light due to its integrated filter. When an IR signal is received by the photo detector, the preamplifier amplifies the signal which is then demodulated by the digital demodulator. The demodulated signal is then further processed by a microcontroller or other logic circuits.

The pin dip switches of the sensitivity, signals parameters and other features can be adjusted with the dip switches. This allows the device to be tuned to match the data rate and pulse lengths of a specific remote control system. For example, when receiving a signal from the TSAL6100 emitting diode, the sensitivity, data rate, and pulse length can be set to match the TSAL6100.

Conclusion

As an infrared remote control receiver, the TSOP77236TT is designed as a miniaturized package with low power consumption. Its application fields include consumer electronics, portable electronic appliances, games, and toys. It operates by receiving a modulated IR signal from a transmitting device, amplifying it, and then demodulating it using a digital demodulator. Pin dip switches allow the device to be tuned to match various applications and data rates.

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