Description
• The SL 2055 is bipolar IC for receiving preamplifier of infrared remote control system. It consists of a head amplifier, a limiter, a band pass filter, a signal waveform detector, and a waveform rectifier, etc.

FEATUREs
• Built-in filter enable to vary center frequency by an external resistance (fo=30KHz to 80KHz, 38KHz typ.)
• Possible to direct connection to a photo diode.
• Open collector output(directly connectable to TTL and CMOS)
• Internal pull-up resistance and power filter resistance(low-capacitance)
• Less chances of malfunction associated with a high frequency lighting floure internal trap circuit