GL3277

1

GL3277

PREAMPLIFIER FOR REMOTE CONTROL USE

Description

The GL3277 is a bipolar analog ICs specifically

developed for use in infrared remote control system

receiving preamplifiers.

Features

• Enhanced immunity against all kinds of disturbance light

• No occurence of disturbance pulses at the output

• Output active low

• Simple applications

• Support RC-5 code , NEC code

• Operating frequency : 38kHz¡ ¾

2.5kHz @ Vcc=5V, Ta=25¡ É

Pin Configurations

Block Diagram

1

2

3

4

8

7

6

5

DGND

C

AGC

OUT

VCC

NC

NC

AGND

IN

8 SOP

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

5

6

2

1

8

3

VCC

OUT

BIAS

IN

Photo

diode

Input stage

Variable

amp

BPF

Output

stage

AGND

C

AGC

7

4

DGND

R

L

NC

NC

AGC