Description

The CXA1511L/M is a bipolar IC used for preamplifiers that receive signals in infrared remote control systems. These ICs consist of a first-stage amplifier, limiter amplifier, band-pass filter, band elimination filter, signal waveform detection circuit and waveform shaping circuit.

Features

• Low power consumption (VCC = 5V, 9mW typ.)

• Low supply voltage (VCC = 5V)

• Filters (center frequency can be varied through external resistor: fo = 30kHz to 60kHz, 40kHz typ.)

• Elimination of inductors prevents magnetic field inductance interference.

• Optical reception diode can be coupled directly.

• Collector output (pull-up resistor, TTL and CMOS can be connected directly)

Applications

TVs, VCRs, audio equipment