EVERLIGHT ELECTRONICS CO.,LTD.
Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 1 Page: 1 of 10
Device No：SZDMO-036-053 Prepared date：20-Sep-06 Prepared by：Hao Liu
Technical Data Sheet
Infrared Remote-control Receiver Module
IRM-3638T-R
Features
• Photo detector and preamplifier in one package
• Internal filter for PCM frequency
• Improved inner shielding against electrical field disturbance
• TTL and CMOS compatibility
• Low power consumption
• Improved immunity against ambient light
• Suitable burst length 10 cycles/burst≧
• Pb free
• BiCMOS manufacture IC ; ESD HBM>4000V ; MM>250V
• The product itself will remain within RoHS compliant version.
Descriptions
The IRM-3638T-R is 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-3638T-R is the standard IR remote control receiver
series, supporting all major transmission codes.
Applications
․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
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Device No：SZDMO-036-053 Prepared date：20-Sep-06 Prepared by：Hao Liu
IRM-3638T-R
Package Dimensions
24±1.0
OUT
GND
Vcc
Unit:mm
Notes: 1.All dimensions are in millimeters.
2.Tolerances unless dimensions ±0.3mm.
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Device No：SZDMO-036-053 Prepared date：20-Sep-06 Prepared by：Hao Liu
IRM-3638T-R
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 2.7V to 5.5V
Electro-Optical Characteristics (Ta=25℃, and Vcc=3.0V)
Parameter Symbol MIN. TYP. MAX. Unit
Condition
Consumption Current Icc --- 0.8 1.0
mA No signal input
B.P.F Center Frequency Fo --- 38 ---
KHz
Peak Wavelength λp --- 940 ---
nm
L0 12 --- ---
Reception Distance L45 5.5 --- ---
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 2.7 --- ---
V
Low Level Output Voltage VL --- --- 0.25
V
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.
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Device No：SZDMO-036-053 Prepared date：20-Sep-06 Prepared by：Hao Liu
IRM-3638T-R
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).
(Standard light / Light source temperature 2856°K).
fMeasuring system
According to the measuring system shown in Fig.-3
Block Diagram：
Modulated IR signal
min 10 pulses
Carrier frequency f0
OUT IN
Vs
GND
Input CGA & filter Demodulator
Oscillator AGC/ATC & digital control
µC
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Device No：SZDMO-036-053 Prepared date：20-Sep-06 Prepared by：Hao Liu
Carrier frequency is adjusted to
center frequency of each product.
IR TANSMITTER
OUTPUT WAVE FORM
OUTPUT PULSE
OF DEVICE
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-3638T-R
Application Circuit：
RC Filter should be connected closely between Vcc pin and GND pin.
Fig.-1 Transmitter Wave Form D.U.T output Pulse
Fig.-2 Measuring Method Fig.-3 Measuring System
Duty=0.5
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Device No：SZDMO-036-053 Prepared date：20-Sep-06 Prepared by：Hao Liu
IRM-3638T-R
The Notice of Application:
Transmission of remote control signal consist of four parts: Encode Part, IR Transmitter Source,
IRM device, Decode Part
1. When IRM-3638T-R 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-3638T-R device, it requires the composition of code pattern to reach the
demand as follows:
Minimum tburst
( number of pulses per burst)
Minimum tburst_gap
( number of pulses
between two burst)
Minimum tpause
10 pulses 14 pulses 25 msec
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.
IRM-3638T-R Code Property:
Data format Data format
NEC O Sony 12 Bit O
RC5 _ Philips O Sony 15 Bit X
RC6 _ Philips O Sony 20 Bit X
RCA _ Thomson X Matsushita O
Toshiba O Mitsubishi O
Sharp O Zenith O
JVC O
High data rate
(4000 bit/s) X
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Device No：SZDMO-036-053 Prepared date：20-Sep-06 Prepared by：Hao Liu
IRM-3638T-R
Typical Electro-Optical Characteristics Curves
Fig.-4 Relative Spectral Sensitivity vs.
Wavelength
Fig.-5 Relative Transmission Distance vs.
Direction
20
Relative Transmission Distance (%)
-60
20
0
40
60
80
-40 -20 04060
Angle (deg)
Fig.-6 Output Pulse Length vs. Arrival Distance Fig.-7 Arrival Distance vs. Supply Voltage
16
Transmission Distance Lc (m)
2
010
6
4812 14
Output Pulse Width TWL (µsec)
Transmission Distance Lc (m)
3.32.7 3.0
05.35.04.73.8 4.1 4.43.5
Supply Voltage Vcc (V)
5.5
4.0
8.0
16.0
12.0
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Device No：SZDMO-036-053 Prepared date：20-Sep-06 Prepared by：Hao Liu
IRM-3638T-R
Typical Electro-Optical Characteristics Curves
Fig.-8 Relative Transmission Distance
vs. Center Carrier Frequency
Fig.-9 Arrival Distance vs. Ambient Temperature
Carrier Frequency (KHz)
30
Relative Dista nc e (%)
20
50
90
70
60
80
25 35 40 50
45
Transmission Distance Lc (m)
Am bient Temperature T a (°C)
7.0
3.5
14.0
10.5
17.5
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Device No：SZDMO-036-053 Prepared date：20-Sep-06 Prepared by：Hao Liu
IRM-3638T-R
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℃ +100℃
(15min)(5min)(15min)
300 cycle test
n=22,c=0
High temperature test
Temp: +100℃
Vcc:6V
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
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Device No：SZDMO-036-053 Prepared date：20-Sep-06 Prepared by：Hao Liu
IRM-3638T-R
Packing Quantity Specification
1. 1500 PCS/1Box
2. 10 Boxes/1Carton
Label Form Specification
CPN: Customer’s Production Number
P/N : Production Number
QTY: Packing Quantity
CAT: Ranks
HUE: None
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.
IRM-3638T-R
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
