TSOP57438TT1

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Sensing Distance:	40m
B.P.F. Center Frequency:	38.0kHz
Voltage - Supply:	2.5V ~ 5.5V
Current - Supply:	700µA
Orientation:	Top View
Mounting Type:	Surface Mount
Operating Temperature:	-25°C ~ 85°C (TA)

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The TSOP57438TT1 is an optical sensor, which belongs to the Photo Detectors family and part of the Remote Receiver subgroup. This device is a 940nm infrared band active proximity and presence detection low-power integrated module. This was designed primarily for the human body detection, and can be used for applications at an operating distance of up to 7 meters. It has a small physical size of 5.6 x 5.6 mm and its integrated electronics requires very low external components for operation.Optical sensors are devices which detect and measure the presence of light, usually in the infrared, visible or ultraviolet spectrum range of the electromagnetic spectrum. Photodetectors, a type of optical sensor, are made to detect light and convert it into an electrical signal. They are employed in a variety of applications, such as measuring light intensity and detecting light pulses. In the field of Remote Receiver subgroup, a TSOP57438TT1 integrates a digital signal processor (DSP) to process and control the digital output signals, as well as a photodiode for detecting the IR pulses of remote controls. This allows it to accurately receive signals from infrared remote controllers such as those for television sets, videodisc players, and remote toys.The TSOP57438TT1 has a number of features which give it a wide variety of applications. Its digital output can be configured in a number of ways, including on/off digital output, adjustable pulse-duration output and adjustable toggle output. It also has integrated signal filtering circuitry which helps reduce false detection of noise from other IR sources. It is able to respond to signals from up to 7m away, and requires a very small amount of external components for operation. The device works through the transfer of energy. An input is supplied to the device, typically in the form of infrared energy, which is detected by its photodiode. The photodiode converts the infrared energy into an electrical signal, which is then processed by the digital signal processor (DSP). The DSP then determines the signal type (on/off digital, adjustable pulse-duration or adjustable toggle) and produces the appropriate output signal.The TSOP57438TT1 is an ideal solution for applications which require a reliable and cost-effective way to detect the presence of an infrared source such as a remote control. It is especially useful in applications where there is a need for long-range detection of remote controls (up to 7m), as well as applications where there is a requirement to utilize multiple types of output signals. As such, it is a versatile and reliable remote receiver which is suitable for a wide range of applications.

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