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UPC2800AGR Datasheet

  • UPC2800AGR

  • PREAMPLIFIER FOR INFRARED REMOTE CONTROL

  • 12頁

  • NEC   NEC

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DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUITS
碌
PC2800A
PREAMPLIFIER FOR INFRARED REMOTE CONTROL
DESCRIPTION
The
碌
PC2800A 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
鈥?High reliability due to high-frequency lighting fluorescent lamp
Internal trap circuit
鈥?Internal bandpass filter
Central frequency variable by external resistor: f
O
= 30 to 80 kHz
Few variation of central frequency thanks to f
O
trimming
鈥?Low external components
Internal output pull-up resistor and power supply filter resistor
Only low external capacitance required
鈥?ABLC (Automatic Bias Level Control) circuit
Controls fluctuation of bias level cause by disturbance from external light
鈥?Open-collector output
Open-collector output (active low) with pull-up resistor (33 k鈩?TYP.)
ORDERING INFORMATION
Part Number
Package
8-pin plastic SOP (225 mil)
碌
PC2800AGR
The information in this document is subject to change without notice.
Document No. S12974EJ6V0DS00 (6th edition)
Date Published October 1998 N CP(K)
Printed in Japan
The mark
shows major revised points.
漏
1992

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