DaSheng Elec-tech Co.,Ltd

DaSheng Elec-tech Co.,Ltd
PC3638
IR Receiver Modules for Remote Control Systems
Dimensions
Description
The PC3638 is remote control receiver modules.
Pin diode and receiver IC are assembled on one module.
Small-sized, light-weight, and low current consumption.
modules have been achieved by using resin mold.
The demodulated output signal can directly be decoded
by a microprocessor. The main benefit is the reliable
function even in disturbed ambient and the protection
against uncontrolled output pulses.
Output
2.Ground
3.Vcc
Features
◆Supply Voltage Range: 2.7V to 5.5 V
◆TTL and CMOS compatibility
◆Photo detector and preamplifier in one package.
◆Internal filter for PCM frequency
◆Output active low
◆Enhanced Immunity against all kinds of disturbance light
◆No occurrence of disturbance pulses at output pin with
in nominal conditions.
◆Short settling time after power On.
◆Meet RoHS
Applications
Unit:mm
Application Circuit
◆Audio video applications
◆Home appliances
◆Toy applications
◆Remote control equipment
VCC
47~100Ω
VCC
PC3638
47㎌
Transmitter
IC
IR LED:L5IR5
VOUT
GND
MCU
GND
R-C filter recommended to suppress power supply disturbances.
R-C filter should be connected closely between VCC pin and GND pin.
Block Diagram
VCC
AGC
Post
Amp.
Input
PIN
Diode
BPF
AGC
Control
Waveform
Detector
&
ATC
40㏀
OUT
Waveform
Rectifier
GND
1/4
DaSheng Elec-tech Co.,Ltd
PC3638
Absolute Maximum Ratings
(Ta = 25℃)
Parameter
Symbol
Min.
Max.
Unit
Vcc
0
6.0
V
Output Voltage
Vout
0
6.0
V
Output Current
Iout
0
2.5
mA
Storage Temperature
Tst
-25
85
℃
Soldering Temperature
Tsd
260℃±5℃
℃
Supply Voltage
Conditions
Max 5 sec
Recommended Operating Conditions
(Ta = 25℃)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Operating Voltage
Vcc
2.7
-
5.5
V
Input Frequency
fin
30
38
60
kHz
Operating Temperature
Top
-20
25
80
℃
Conditions
Electro-optical Characteristics
Specifications hold over the Recommended Operating Conditions, unless otherwise noted herein.
All values are at 25℃ and Vcc=3.0V/5.0V
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Supply Voltage
Vcc
--
2.7
--
5.5
V
Working Temperature
Topr
--
-20
25
80
℃
Current Consumption
Icc
Input Singnal=0
--
0.8
1.5
mA
Max Input Current
Iin
Vin=0V
0.3
--
0.8
mA
Half Angle
△θ
--
--
±45
--
deg
B.P.F. Center Frequency
Fo
--
--
37.9
--
kHz
Vcc=3V
8
12
--
m
Reception Distance
d
Vcc=5V
10
12
--
m
--
940
--
nm
200±5Lux
Peak Wavelength
λp
--
Singnal Output
So
--
High Level Output Voltage
Voh
--
4.5
5.0
--
V
Low Level Output Voltage
Vol
--
--
0.2
0.4
V
High Level Pulse Width
Twh
500
600
700
μs
500
600
700
μs
--Active Low--
Burst Wave=600μs
Low Level Pulse Width
Twl
2/4
DaSheng Elec-tech Co.,Ltd
PC3638
[ Fig. 1 ] Data Signal diagram
Carrier Frequency : 37.9kHz
(Input burst waveform)
Burst length
(Integrator output)
(Output pulse)
The minimum
Burst length
[ Fig.2 ] Transmitter
10㏀
PD
S/Transmitter
VCC
10㎌
VOUT
10㏀
GND
30㎝
[ Fig.3 ] Test condition of arrival distance
Vout
osc
Transmitter
GND
Vcc
: Indicates horizontal and
vertical directions
[ Measurement condition for arrival distance ]
Ambient light source : Detecting surface illumination shall be irradiate 200±50Lux
under ordinary white fluorescence lamp without high frequency lighting
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DaSheng Elec-tech Co.,Ltd
PC3638
Electrical/Optical Characteristics
[ Fig.5 ] Sensitivity vs. Supply Voltage
[ Fig.4 ] Supply Current vs. Voltage
100
Relative Sensitivity(%)
Supply Current(㎃)
2.5
2.0
1.5
1.0
0.5
80
60
40
20
0
0.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
2.5
6.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
Supply Voltage(V)
Supply Voltage(V)
[ Fig.6 ] Output Pulse Width vs. Distance
[ Fig.7 ] Directivity (Horizontal)
0˚
20˚
40˚
700
Relative Radiant(˚)
Output Pulse Width(㎲)
800
600
500
400
60˚
100
V
90
H
80˚
300
0
4
8
12
16
20
24
80
28
60
Transmission Distance(m)
40 20 0
Relative Sensitivity(%)
ESD Test Results
[ Fig.8 ] BPF Fc Curve
BPF fc
1.2
Parameter
Conditions
Specification
Results
Relativ e responsiv ity
1
0.8
Machine
Model
C=200㎊,
R=0Ω
Min ±200V
>±200V
Human Body
Model
C=100㎊,
R=1.5㏀
Min ±2000V
>±2000V
Charged
Device Model
R=100㏁, 1Ω
Min ±800V
>±800V
0.6
0.4
0.2
0
0.5
0.6 0.7
0.8 0.9
1
1.1
1.2 1.3
1.4 1.5
f/fo Relative Frequency
4/4