EVERLIGHT ELECTRONICS CO.,LTD.
Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 2 Page: 1 of 10
Device No：DMO-026-310 Prepared date：07-20-2005 Prepared by： Carryll Hsu
Technical Data Sheet
Infrared Remote-control Receiver Module
IRM-26xxA SERIES
Features :
• Photo detector and preamplifier in one package
• Internal filter for PCM frequency
• Improved shielding against electrical field disturbance
• TTL and CMOS compatibility
• Output active low
• Low power consumption
• Improved immunity against ambient light
• Pb free
•The product itself will remain within RoHS compliant version.
Descriptions
‧The IRM-26xxA SERIES are miniaturized receivers for infrared
remote control systems. PIN diode and preamplifier are
assembled on lead frame, the epoxy package is designed as IR
filter. The demodulated output signal can directly be decoded
by a microprocessor. IRM-26xxA SERIES is the standard IR
remote control receiver series, supporting all major transmission
codes.
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 MATERIAL COLOR
Chip Silicon Black
Compound Epoxy Black
EVERLIGHT ELECTRONICS CO.,LTD.
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Device No：DMO-026-310 Prepared date：07-20-2005 Prepared by： Carryll Hsu
Vcc
GND
OUT
IRM-26xxA SERIES
Package Dimensions
Notes: 1.All dimensions are in millimeters.
2.Tolerances unless dimensions ±0.3mm.
Available Types For Different Carrier Frequencies
Type Carrier Frequencies(Typ)
IRM-2633A 32.7 kHz
IRM-2636A 36.7 kHz
IRM-2638A 37.9 kHz
IRM-2640A 40.0 kHz
IRM-2656A 56.7 kHz
EVERLIGHT ELECTRONICS CO.,LTD.
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Device No：DMO-026-310 Prepared date：07-20-2005 Prepared by： Carryll Hsu
IRM-26xxA SERIES
Absolute Maximum Ratings (Ta=25℃)
Parameter Symbol Rating Unit Notice
Supply Voltage Vcc 0~6 V
Operating Temperature Topr -25 ~ +80 ℃
Storage Temperature Tstg -40 ~ +85 ℃
Soldering Temperature Tsol 260 ℃ 4mm from mold body
less than 10 seconds
Recommended Operating Condition
Supply Voltage Rating: Vcc 4.5V to 5.5V
Electro-Optical Characteristics (Ta=25℃, and Vcc=5 V)
Parameter Symbol MIN. TYP. MAX. Unit
Condition
Consumption Current Icc --- 1.1 2.5
mA No signal input
Peak Wavelength λp --- 940 ---
nm
L0 12 --- ---
Reception Distance L45 6 --- ---
m
Half Angle(Horizontal) Θh --- 45 ---
deg At the ray axis
*1
Half Angle(Vertical) Θv --- 45 ---
deg
High Level Pulse Width TH 400 --- 800
μs
Low Level Pulse Width TL 400 --- 800
μs
At the ray axis
*2
High Level Output Voltage VH 4.5 --- --- V
Low Level Output Voltage VL --- 0.2 0.5 V
*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.
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Device No：DMO-026-310 Prepared date：07-20-2005 Prepared by： Carryll Hsu
Carrier frequency is adjusted to
center frequency of each product.
IR TANSMITTER
OUTPUT WAVE FORM
OUTPUT PULSE
OF DEVICE
IRM-26xxA SERIES
Test Method：
The specified electro-optical characteristics is satisfied under the following
Conditions at the controllable distance.
cMeasurement place
A place that is nothing of extreme light reflected in the room.
dExternal 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)
eStandard 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).
fMeasuring system
According to the measuring system shown in Fig.-3
Fig.-1 Transmitter Wave Form D.U.T output Pulse
Duty=0.5
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Device No：DMO-026-310 Prepared date：07-20-2005 Prepared by： Carryll Hsu
Standard Transmitter
Oscilloscope
Vout
10uF
+5.0± 0.1V
10k
20cm
100k
θ
θ
D.U.T
L: Transmission Distance
Standard Transmitter
GND
Vcc
OUT
Vout
θ: Angle Of Horizontal & Vertical Direction
IRM-26xxA SERIES
Fig.-2 Measuring Method Fig.-3 Measuring System
Block Diagram：
I-V
Converter
&Input
Bias
Control
Pre
Amp
AGC
Amp
Limit
Amp
Noise Det.&
Gain Ctrl.
Fset Bias Circuit
Frequency
Setting
Frequency
Trimming
Comparator
Threshold
Control
Circuit
Integrator
&Wave
Shaping
Output
Stage
Voltage
Reference
Circuit
IN
OUT
GND
VCC
Band-pass
Fiter
Application Circuit：
RC Filter should be connected closely between Vcc pin and GND pin.
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Device No：DMO-026-310 Prepared date：07-20-2005 Prepared by： Carryll Hsu
IRM-26xxA SERIES
The Notice of Application:
Transmission o remote control signal consist of four parts: Encode Part, IR Transmitter Source,
IRM device, Decode Part
1. When IRM-26xxA 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. When using IRM-26xxA device, it requires the composition of code pattern to reach the demand
as follows:
Minimum Burst Length tburst (number of pulses per burst) : 10 cycles
Minimum data pause time: Remocon TX code with Repeat key Remocon Tx code with Full frame Repeat
()
()
dataactualgapactual
nBngapgapactual
nBndatadataactual
TT
sTTT
sTTT
,,
,
,
0.2
150
150
∗≥
−−=
−−=
∑
∑
µ
µ
Remocon TX repeat Code with minimum
burst length
(
)
sTT rgap
µ
1500.2 +
∗
≥
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.
EVERLIGHT ELECTRONICS CO.,LTD.
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Device No：DMO-026-310 Prepared date：07-20-2005 Prepared by： Carryll Hsu
θ
IRM-26xxA SERIES
Typical Electro-Optical Characteristics Curves
Fig.-4 Relative Spectral Sensitivity vs. Wavelength Fig.-5 Relative Transmission Distance vs. Direction
Fig.-6 Arrival Distance vs. Ambient Temperature Fig.-7 Arrival Distance vs. Supply Voltage
Fig.-8 Relative Transmission Distance vs. Center Carrier Frequency
IRM-2633A, 2636A, 2638A, 2640A
Transmission Distance Lc (m)
TWL ; Output Pulse Width (µsec)
IRM-2656A
Transmission Distance Lc (m)
TWL ; Output Pulse Width (µsec)
EVERLIGHT ELECTRONICS CO.,LTD.
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Device No：DMO-026-310 Prepared date：07-20-2005 Prepared by： Carryll Hsu
IRM-26xxA SERIES
Typical Electro-Optical Characteristics Curves
Fig.-9 Relative Transmission Distance vs. Center Carrier Frequency
IRM-2633A
Center Carrier Frequency (kHz)
Relative Transmission Distance (%)
IRM-2636A
Center Carrier Frequency (kHz)
Relative Transmiss ion Distance (%)
IRM-2638A
Center Carrier Frequency (kHz)
Relative Transmission Distance (%)
IRM-2640A
Center Carrier Frequency (kHz)
Relative Transmission Distance (%)
IRM-2656A
Center Carrier Frequency (kHz)
Relative Transmission Distance (%)
EVERLIGHT ELECTRONICS CO.,LTD.
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Device No：DMO-026-310 Prepared date：07-20-2005 Prepared by： Carryll Hsu
IRM-26xxA SERIES
█ Reliability Test Item And Condition
The reliability of products shall be satisfied with items listed below.
Confidence level: 90%
LTPD: 10%
Test Items Test Conditions Failure Judgement
Criteria Samples(n)
Defective(c)
Temperature cycle 1 cycle -40℃ +25℃ +85℃
(30min)(5min)(30min)
300 cycle test n=22,c=0
High temperature test Temp: +85℃
Vcc:5V
1000hrs n=22,c=0
Low temperature
storage Temp: -40℃
1000hrs n=22,c=0
High temperature
High humidity Ta: 85℃,RH: 85%
1000hrs n=22,c=0
Solder heat Temp: 260±5℃ 10sec
4mm From the bottom of the package.
L0≦ L×0.8
L45≦ L×0.8
L: Lower specification
limit
n=22,c=0
EVERLIGHT ELECTRONICS CO.,LTD.
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Device No：DMO-026-310 Prepared date：07-20-2005 Prepared by： Carryll Hsu
RoHS
IRM-26xxA SERIES
Packing Quantity Specification
1. 1500PCS/1Box
2. 10Boxes/1Carton
Label Form Specification
PN: Customer’s Production Number
P/N : Production Number
QTY: Packing Quantity
CAT: Ranks
HUE: Peak Wavelength
REF: Reference
LOT No: Lot Number
MADE IN TAIWAN: Production Place
Notes
1. Above specification may be changed without notice. EVERLIGHT will reserve authority on
material change for above specification.
2. When using this product, please observe the absolute maximum ratings and the instructions
for using outlined in these specification sheets. EVERLIGHT assumes no responsibility for
any damage resulting from use of the product which does not comply with the absolute
maximum ratings and the instructions included in these specification sheets.
3. These specification sheets include materials protected under copyright of EVERLIGHT
corporation. Please don’t reproduce or cause anyone to reproduce them without
EVERLIGHT’s consent.
EVERLIGHT ELECTRONICS CO., LTD. Tel: 886-2-2267-2000, 2267-9936
Office: No 25, Lane 76, Sec 3, Chung Yang Rd, Fax: 886-2267-6244, 2267-6189, 2267-6306
Tucheng, Taipei 236, Taiwan, R.O.C http:\\www.everlight.com
IRM-2638A
