AIC1863

Features:

· Only Two External Components Required Other than the Photodiode.
· Easy to Integrate into Module due to Small Chip Size.
· Minimized Chances of Malfunction Due to Ambient Light.
·Low Power Consumption.
·Center Frequency of Band Pass Filter Adjustable by an External Resistor.
·Microcomputer Compatible.




Application

·IR Remote Control Receivers for Consumer Electronic Products, such as TVs, VCRs, VCD/DVD Players, Audio Devices, Air Conditioners, Electric Fans...etc.




Pinout








Specifications

Supply Voltage ...............................................5.5V
Input Voltage ..............................................5 Vp-p
Operating Temperature Range ..... -20~80
Storage Temperature Range ...... - 65~ 150




Description

The AIC1863 is a high performance infrared remote control preamplifier. Especially, AIC1863 has excellent interference suppression capability. The infrared pulses arriving at the photodiode are treated by the trans-impedance amplifier and amplified by the auto-gain control amplifier, limiter amplifier, and band-pass filter. The following evaluation circuits, including the comparator, integrator, and schmitt-trigger, demodulate the transmitted digital signal. Reduction of sensitivity due to external interference is achieved by the short-time boost and long-time control circuits, which prevent interference voltages from affecting the output.