GL3277.pdf 데이터시트 (총 3 페이지) - 파일 다운로드 GL3277 데이타시트 다운로드

No Preview Available !

GL3277
GL3277
PREAMPLIFIER FOR REMOTE CONTROL USE
Description
Pin Configurations
The GL3277 is a bipolar analog ICs specifically
developed for use in infrared remote control system
receiving preamplifiers.
VCC 1
Features
Enhanced immunity against all kinds of disturbance light
• No occurence of disturbance pulses at the output
CAGC 2
OUT 3
• Output active low
• Simple applications
DGND 4
• Support RC-5 code , NEC code
• Operating frequency : 38kHz¡ ¾2.5kHz @ Vcc=5V, Ta=25¡ É
Block Diagram
NC NC VCC
7 81
8 NC
7 NC
6 AGND
5 IN
8 SOP
IN
5
BIAS
Input stage
Photo
diode
6
AGND
Variable
amp
2
CAGC
BPF
AGC
Output
stage
RL
3
OUT
4
DGND
The information in this document is subject to change without notice.
1

No Preview Available !

GL3277
Absolute Maximum Ratings (Ta=25¡ É, unless otherwise noted)
Characteristics
Power Supply Voltage
Storage Temperature Range
Pin Symbol
1 VCC
- Tstg
Value
6
-40 to +125
Recommended Operating Condition
Characteristics
Pin Symbol
Value
Operating Supply Voltage
1 VCC
4.5 to 5.5
Operating Temperature Range
- Ta
0 to 70
Electrical Characteristics (VCC=5V, Ta=25 ¡ É, foper=38kHz, unless otherwise noted)
Characteristics
Symbol
Conditions
MIN TYP MAX Unit
Operating Supply Current
Input Voltage
Voltage Gain
BPF Bandwidth ( -3dB )
Output Pulse Width
Low Level Output Voltage
Icc No Signal
VIN
Av_max
Av_min
IIN = 0A
IIN = -330§ Ë
VIN = 30§ Åp-p
Pin2=1.5V
VIN = 30§ Åp-p
Pin2=2.5V
fBW
tpw1
tpw2
VOL
VIN = 30§ Åp-p
fIN = 38§ Õburst
VIN = 500§ Åp-p
fIN = 38§ Õburst
VIN = 50mVp-p
-
0.3 0.7 1.7
3.6 4.1 4.6
0.8 1.3 1.8
80 - 110
40 - 80
-5-
440 600 770
440 600 770
- 0.2 0.4
mA
V
dB
dB
kHz
¥ ìs
V
High Level Output Voltage
VOH
-
4.8 5.0
-
V
Unit
Vdc
¡É
Unit
Vdc
¡É
REMARK
note 1
note 1
60 ms
VIN
VOUT
VOH
VOL
600¥ ìs
600¥ ìs
tpw
2
t

No Preview Available !

GL3277
Pin Descriptions
No Symbol
1 VCC
2 CAGC
3 OUT
4 DGND
5 IN
6 AGND
7 NC
8 NC
Supply vtg.
AGC cap.
Output
Ground
Input
Ground
-
-
Description
Supply voltage of 5V¡ ¾10%
AGC capacitor connected.
Open collector output with pull-up resistance. Active low output.
Input stage, Variable amp, AGC, BPF ground
Input connection for photodiode with bias voltage
Output stage ground
-
-
Application Circuit
5V
33 ¥ Ø
output
47¥ ìF
60 nF
1 VCC
2 CAGC
3 OUT
4 DGND
NC 8
NC 7
AGND 6
IN 5
photo diode
3