EVERLIGHT ELECTRONICS CO.,LTD.
Technical Data Sheet
Infrared Remote-control Receiver Module
IRM-37xxA 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-37xxA 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-37xxA 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
Chip
Compound
MATERIAL
Silicon
Epoxy
COLOR
Black
Black
Everlight Electronics Co., Ltd.
Device No：DMO-037-386
http:\\www.everlight.com
Prepared date：09-16-2005
Rev 1
Prepared by：
Page: 1 of 9
Cindy Lin
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-37xxA SERIES
Package Dimensions
OUT
Vcc
GND
Notes:
1.All dimensions are in millimeters.
2.Tolerances unless dimensions
±0.3mm.
Available Types For Different Carrier Frequencies
Type
IRM-3733A
IRM-3736A
IRM-3738A
IRM-3740A
IRM-3756A
Carrier Frequencies(Typ)
32.7 kHz
36.7 kHz
37.9 kHz
40.0 kHz
56.7 kHz
Everlight Electronics Co., Ltd.
Device No：DMO-037-386
http:\\www.everlight.com
Prepared date：09-16-2005
Rev 1
Prepared by：
Page: 2 of 9
Cindy Lin
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-37xxA SERIES
Absolute Maximum Ratings (Ta=25℃)
Parameter
Supply Voltage
Operating Temperature
Storage Temperature
Soldering Temperature
Symbol
Vcc
Topr
Tstg
Tsol
Rating
0~6
-25 ~ +80
-40 ~ +85
260
Unit
V
℃
℃
℃
4mm from mold body
less than 10 seconds
Notice
Recommended Operating Condition
Supply Voltage Rating: Vcc 2.7V to 5.5V
Electro-Optical Characteristics (Ta=25℃, and Vcc=3 V)
Parameter
Consumption 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
2.5
---
TYP.
1.1
940
---
---
45
45
---
---
---
0.2
MAX.
2.5
---
---
---
---
---
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
*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-037-386
http:\\www.everlight.com
Prepared date：09-16-2005
Rev 1
Prepared by：
Page: 3 of 9
Cindy Lin
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-37xxA SERIES
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,Δλ=50nm.
Also, photodiode is used of PD438B(Vr=5V).
Measuring system
According to the measuring system shown in Fig.-3
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
Everlight Electronics Co., Ltd.
Device No：DMO-037-386
http:\\www.everlight.com
Prepared date：09-16-2005
Rev 1
Prepared by：
Page: 4 of 9
Cindy Lin
EVERLIGHT ELECTRONICS CO.,LTD.
IRM-37xxA SERIES
Fig.-2
Measuring Method
20cm
10k
+5.0± 0.1V
10uF
θ
Fig.-3
Measuring System
L: Transmission Distance
Vcc
θ
OUT
D.U.T
Standard Transmitter
Vout
100k
Standard Transmitter
Vout
GND
θ: Angle Of Horizontal & Vertical Direction
Oscilloscope
Block Diagram：
VCC
Voltage
Reference
Circuit
Noise Det.&
Gain Ctrl.
Band-pass
Filter
IN
I-V
Converter
&Input
Bias
Control
Pre
Amp
AGC
Amp
Limit
Amp
Comparator
Integrator
&Wave
Shaping
Output
Stage
OUT
Fset Bias Circuit
Frequency
Setting
Frequency
Trimming
Threshold
Control
Circuit
GND
Application Circuit：
RC Filter should be connected closely between Vcc pin and GND pin.
Everlight Electronics Co., Ltd.
Device No：DMO-037-386
http:\\www.everlight.com
Prepared date：09-16-2005
Rev 1
Prepared by：
Page: 5 of 9
Cindy Lin
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