Unknown Manufacturer 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. This can also be suitable for high optical and electrical disturbances.DESCRIPTION
Wide operating is very suitable to the hand-held battery operating systems, such as electrical toy. It 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. 1.2FEATURES
● Wide operating supply voltage 2.7V ~ 5.5 V● Built-in internal voltage reference circuit for wide operating
● Maximum interference safety against optical and electrical disturbances
● No external components necessary
● The center frequency can be varied with option PADs ( 32.7kHz, 36.7kHz, 37.9kHz, 40kHz, 56.7kHz)
● I...