ADT2550SXX * this specifications are subject to be changed without notice http://www.ad-tech.co.kr general description features the ADT2550SXX is a miniaturized low current receiver ic for infrared remote control system. it has a wide voltage operating such as 2.7~5.5v, a high sensitivity. wide operating voltage is very suitable to the hand-held battery operating systems, e.g., electrical toy. it has 5 trimming cells for the fi ned adjust of center frequency. these ics are capable of accept ing a photodiode directly and include many excellent circuit such as a high gain initial amplifier, a gain control amplifier, a limiter, a band pass filter, a detection circuit, two comparator circuits, gain control circuits, integrator circuits, a waveform shaping circuit assembled on a single chip. ? wide operating supply voltage 2.7 v ~ 5.5 v. (min. 2.1v operating ) ? low current consumption ( typ. 370ua@3v, typ. 430ua@5v ) ? maximum interference safety ag ainst vcc noise & light noise ? suitable for minimum burst leng th of 12 pulses per burst. ? continuous ( <1ms pause time) and sony 20bit codes are acceptable. ? no external components necessary ? output active low ? carrier frequency 36 / 37.9 / 40khz
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