HL3280

The HL3280 is a miniaturized receiver IC for use in the infrared remote control system. It has a wide voltage operating such as 2.7~5.5V, a high sensitivity, and good noise immunity. Wide operating is very suitable to the hand-held battery operating systems, such as electrical toy.

HL3280 can also be suitable for high optical and electrical disturbances.

HL3280 has the frequency selecting Pads for setting the center frequency of band-pass filter and also has 5 trimming Pads for the fine adjustment of center frequency.

The HL3280 is capable of accepting a photodiode directly and include many excellent circuit such as an internal voltage reference for wide voltage operating, 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.