EVERLIGHT ELECTRONICS CO.,LTD.
Technical Data Sheet
Infrared Remote-control Receiver Module
IRM-3638
Features
‧High
protection ability against EMI .
‧Circular
lens to improve the receive characteristic.
‧Line-up
for various center carrier frequencies.
‧Low
voltage and low power consumption.
‧High
immunity against ambient light.
‧Photodiode
with integrated circuit.
‧TTL
and CMOS compatibility.
‧Long
reception distance.
‧High
sensitivity.
‧Suitable
min. burst length≧6 or 10 pulses/burst.
‧Pb
free.
Descriptions
The device is a miniature type infrared remote control
system receiver which has been developed and designed by
utilizing the most updated IC technology. The PIN diode
and preamplifier are assembled on lead frame, the epoxy
package is designed as an IR filter. The demodulated
output signal can directly be decoded by a microprocessor.
Applications
1. Optical switch
2. Light detecting portion of remote control
․AV
instruments such as Audio, TV, VCR, CD, MD, etc.
․Home
appliances such as Air-conditioner, Fan , etc.
․The
other equipments with wireless remote control.
․CATV
set top boxes
․Multi-media
Equipment
PART
Chip
Lead Frame
Package
MATERIAL
Silicon
SPCC
Epoxy
COLOR
---
Silver white
Black
Everlight Electronics Co., Ltd.
Device No：DMO-036-185
http:\\www.everlight.com
Prepared date：06-17-2004
Rev 1.1
Page: 1 of 9
Prepared by：Carryll Hsu
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-3638
Package Dimensions
OUT
GND
Vcc
Notes:
1.All dimensions are in millimeters.
2.Tolerances unless dimensions
±0.3mm.
Absolute Maximum Ratings (Ta=25℃)
Parameter
Supply Voltage
Operating Temperature
Storage Temperature
Soldering Temperature
Symbol
Vcc
Topr
Tstg
Tsol
Rating
0~6
-25 ~ +85
-40 ~ +85
260
Unit
V
℃
℃
℃
4mm from mold body
less than 10 seconds
Notice
Everlight Electronics Co., Ltd.
Device No：DMO-036-185
http:\\www.everlight.com
Prepared date：06-17-2004
Rev 1.1
Page: 2 of 9
Prepared by：Carryll Hsu
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-3638
Recommended Operating Condition
Supply Voltage Rating: Vcc 2.7V to 5.5V
Electro-Optical Characteristics (Ta=25℃, and Vcc=3.0V)
Parameter
Consumption Current
B.P.F Center Frequency
Peak Wavelength
Reception Distance
Half Angle(Horizontal)
Half Angle(Vertical)
High Level Pulse Width
Low Level Pulse Width
High Level Output Voltage
Low Level Output Voltage
Symbol
Icc
Fo
λ
p
L
0
L
45
Θ
h
Θ
v
T
H
T
L
V
H
V
L
MIN.
---
---
---
14
6
---
---
400
400
2.7
---
TYP.
---
38
940
---
---
45
45
---
---
---
0.2
MAX.
2
---
---
---
---
---
---
800
800
---
0.5
deg
deg
μs
μs
V
V
At the ray axis
*2
At the ray axis
*1
Unit
mA
KHz
nm
m
Condition
No signal input
Notes:
*1:The ray receiving surface at a vertex and relation to the ray axis in the range of
θ=
0° and
θ=45°.
*2:A range from 30cm to the arrival distance. Average value of 50 pulses.
Everlight Electronics Co., Ltd.
Device No：DMO-036-185
http:\\www.everlight.com
Prepared date：06-17-2004
Rev 1.1
Page: 3 of 9
Prepared by：Carryll Hsu
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-3638
Test Method：
The specified electro-optical characteristics is satisfied under the following
Conditions at the controllable distance.
Measurement place
A place that is nothing of extreme light reflected in the room.
External light
Project the light of ordinary white fluorescent lamps which are not high
Frequency lamps and must be less then 10 Lux at the module surface.
(Ee≦10Lux)
Standard transmitter
A transmitter whose output is so adjusted as to
Vo=400mVp-p
and the output
Wave form shown in Fig.-1.According to the measurement method shown in
Fig.-2 the standard transmitter is specified.
However , the infrared photodiode to be used for the transmitter should be
λp=940nm,∆λ=50nm.
Also, photodiode is used of PD438B(Vr=5V).
(Standard light / Light source temperature 2856°K).
Measuring system
According to the measuring system shown in Fig.-3
Block Diagram：
Vs
IN
Input
CGA & filter
Demodulator
OUT
µC
Oscillator
Carrier frequency f0
AGC/ATC & digital control
Modulated IR signal
min 6/10 pulses
GND
Everlight Electronics Co., Ltd.
Device No：DMO-036-185
http:\\www.everlight.com
Prepared date：06-17-2004
Rev 1.1
Page: 4 of 9
Prepared by：Carryll Hsu
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-3638
Application Circuit：
RC Filter should be connected closely between Vcc pin and GND pin.
Fig.-1
Transmitter Wave Form
D.U.T output Pulse
Carrier frequency is adjusted to
center frequency of each product.
OUTPUT PULSE
OF DEVICE
IR TANSMITTER
OUTPUT WAVE FORM
Duty=0.5
Fig.-2
Measuring Method
20cm
10k
+5.0± 0.1V
Fig.-3
Measuring System
L: Transmission Distance
10uF
θ
θ
Vcc
OUT
D.U.T
Vout
Standard Transmitter
Standard Transmitter
100k
Vout
GND
Oscilloscope
θ: Angle Of Horizontal & Vertical Direction
Everlight Electronics Co., Ltd.
Device No：DMO-036-185
http:\\www.everlight.com
Prepared date：06-17-2004
Rev 1.1
Page: 5 of 9
Prepared by：Carryll Hsu
