EVERLIGHT ELECTRONICS CO.,LTD.
Technical Data Sheet
Infrared Remote-control Receiver Module
IRM-H538/TR2
Features
‧High
shielding against electric field disturbance.
‧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.
‧Top-received
SMD.
‧Suitable
burst length
≧
10 pulses/burst.
‧This
product itself will remain within RoHS compliant version.
‧Pb
free.
‧
External dimensions 5.3(L)*2.9(W)*3.65(H)mm.
Descriptions
The device is a miniature SMD type infrared remote
control system receiver that has been developed and
designed by utilizing the most updated IC technology. The
PIN diode and preamplifier are assembled on PCB, the
epoxy package is designed as an IR filter. The demodulated
output signal can directly be decoded by a microprocessor.
Applications
1. 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
Device Selection Guide
PART
Chip
Package
Metal case
MATERIAL
Silicon
Epoxy
SPCC
COLOR
---
Black
Silver white
Everlight Electronics Co., Ltd.
Device No
http:\\www.everlight.com
Prepared date
Rev
1
Page: 1 of 12
DMO-538-400
11-24-2006
Prepared by Cindy Lin
：
：
：
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-H538/TR2
Package Dimensions
Pin Function
1 :V
out
2 :V
cc
3 :GND
1
2
3
Notes：
1.All dimensions are in millimeters.
：
2.Tolerances unless dimensions
±0.2mm.
Soldering patterns
The following soldering patterns are recommended for reflow-soldering :
Unit: mm
Available Types For Different Carrier Frequencies
Type
IRM-H538/TR2
Everlight Electronics Co., Ltd.
Device No
Carrier Frequencies (Typ)
38 kHz
http:\\www.everlight.com
Prepared date
Rev
1
Page: 2 of 12
DMO-538-400
11-24-2006
Prepared by Cindy Lin
：
：
：
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-H538/TR2
Absolute Maximum Ratings (Ta=25℃)
℃
Parameter
Supply Voltage
Operating Temperature
Storage Temperature
Symbol
Vcc
Topr
Tstg
Rating
0~6
-25 ~ +85
-40 ~ +85
Unit
V
℃
℃
Notice
Recommended Operating Condition
Supply Voltage Rating: Vcc 2.7V to 5.5V
Electro-Optical Characteristics (Ta=25℃, and Vcc=3.0V)
℃
Parameter
Supply Current
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
λ
p
L
0
L
45
Θ
h
Θ
v
T
H
T
L
V
H
V
L
MIN.
---
---
8
5
---
---
400
400
2.7
---
TYP.
---
940
---
---
45
45
---
---
---
0.2
MAX.
1.2
---
---
---
---
---
800
800
---
0.5
deg
deg
μs
μs
V
V
At the ray axis
*2
At the ray axis
*1
Unit
mA
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
http:\\www.everlight.com
Prepared date
Rev
1
Page: 3 of 12
DMO-538-400
11-24-2006
Prepared by Cindy Lin
：
：
：
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-H538/TR2
The Notice of Application:
Transmission remote control signal consist of four parts: Encode Part, IR Transmitter Source, IRM
device, Decode Part
1. When IRM-H538 code select frequency, it need to well understand the center system of
encode part.
2. Strong or weak light of IR Transmitter can affect distance of transmission.
3. Minimum Burst Length T
burst
(number of pulses per burst) : 10 cycles
4. It needs to ensure the translation range of decode part if it is applied to the pulse-width range.
If the above items hardly assure of its application, it’ll cause NG(no good) message from the edge of
signal.
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
Fig.-1
Transmitter Wave Form
.tcudorp hcae fo ycneuqerf retnec
ot detsujda si ycneuqerf reirraC
D.U.T output Pulse
Duty=0.5
Everlight Electronics Co., Ltd.
Device No
http:\\www.everlight.com
Prepared date
DMO-538-400
11-24-2006
Prepared by Cindy Lin
：
ECIVED FO
ESLUP TUPTUO
：
MROF EVAW TUPTUO
RETTIMSNAT RI
Rev
1
Page: 4 of 12
：
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-H538/TR2
Fig.-2
Measuring Method
mc02
Fig.-3
Measuring System
Block Diagram：
Vs
IN
Input
CGA & filter
Demodulator
OUT
µC
Oscillator
Carrier frequency f0
AGC/ATC & digital control
Modulated IR signal
min 10 pulses
GND
Application Circuit：
RC Filter should be connected closely between Vcc pin and GND pin.
Everlight Electronics Co., Ltd.
Device No
http:\\www.everlight.com
Prepared date
Rev
1
Page: 5 of 12
DMO-538-400
11-24-2006
Prepared by Cindy Lin
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：
ecnatsiD noissimsnarT :L
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θ
θ
rettimsnarT dradnatS
：
V1.0 ±0.5+
tuoV
epocsollicsO
Fu01
1
0
0
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k01
rettimsnarT dradnatS
：
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