HEI GL3277 Datasheet

GL3277

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¡¾2.5kHz @ Vcc=5V, Ta=25¡É

Block Diagram

VCC

BIAS

NCNC

7

8

Pin Configurations

VCC

1

2

C

AGC

3

OUT

DGND

1

4

8 SOP

8

NC

7

NC

6

AGND

5

IN

R

L

3

IN

Photo
diode

5

Input stage

6

AGND C

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

Variable

amp

2

AGC

BPF

1

AGC

Output

stage

4

OUT

DGND

Absolute Maximum Ratings (Ta=25¡É, unless otherwise noted)

GL3277

Characteristics Pin

Power Supply Voltage 1

Storage Temperature Range

Recommended Operating Condition

Characteristics Pin

Operating Supply Voltage 1

Operating Temperature Range

Electrical Characteristics (VCC=5V, Ta=25 ¡É, f

Characteristics Symbol

Operating Supply Current

Input Voltage

Voltage Gain

BPF Bandwidth ( -3dB )

Output Pulse Width

Low Level Output Voltage

Icc

V

IN

Av_max

Av_min

f

BW

tpw1
tpw2

V

OL

Conditions

No Signal

I

= 0A

IN

I

= -330§Ë

IN

V

= 30§Å

IN

Pin2=1.5V
V

= 30§Å

IN

Pin2=2.5V
V

= 30§Å

IN

fIN= 38§Õ burst
V

= 500§Å

IN

fIN= 38§Õ burst
V

= 50mV

IN

Symbol

VCC

-

Tstg

Symbol

VCC

-

=38kHz, unless otherwise noted)

oper

MIN

0.3

3.6

0.8

p-p

p-p

p-p

p-p

p-p

-

80 - 110 dB

40

-

440

440

-

TYP

0.7

4.1

1.3

-

5

600

600

0.2

Value

6

-40 to +125

Value

4.5 to 5.5
0 to 70Ta

MAX

770

770

1.7

4.6

1.8

80

0.4

Unit

mA

dB

-

kHz

¥ìs

Unit
Vdc

¡É

Unit
Vdc

¡É

REMARK

V

note 1

V

High Level Output Voltage

note 1

V

IN

V

OUT

V

V

OH

OL

600¥ìs

600¥ìs

V

OH

-

60 ms

t

pw

4.8

5.0

-

V

t

2