©

1992

DATA SHEET

BIPOLAR ANALOG INTEGRATED CIRCUITS

Document No. S12974EJ6V0DS00 (6th edition)

Date Published October 1998 N CP(K)

Printed in Japan

PREAMPLIFIER FOR INFRARED REMOTE CONTROL

The information in this document is subject to change without notice.

DESCRIPTION

The

µPC2800A is a receiver preamplifier for infrared remote control systems. It can be directly connected

to a PIN photodiode and integrates a high-gain first-stage amplifier, limiter, bandpass filter, detection circuit,

and waveform shaping circuit to provide a receiver preamplifier on a single chip.

FEATURES

•

High reliability due to high-frequency lighting fluorescent lamp

Internal trap circuit

•

Internal bandpass filter

•

Low external components

Internal output pull-up resistor and power supply filter resistor

Only low external capacitance required

•

ABLC (Automatic Bias Level Control) circuit

Controls fluctuation of bias level cause by disturbance from external light

•

Open-collector output

Open-collector output (active low) with pull-up resistor (33 k

Ω TYP.)

ORDERING INFORMATION

Part Number

Package

µPC2800AGR

8-pin plastic SOP (225 mil)

The mark

shows major revised points.