RPM7237 [ROHM]
IR Receiver Module; 红外接收器模块RPM7237 series
Photo Link Module
IR Receiver Module
RPM7237 series
RPM7237series are remote control receiver module. Small-sized, light-weight, and low voltage operated (from 2.7V)
modules have been achieved by using resin mold.
zCenter frequency
36.7kHz
zApplications
All household electric appliances such as TV, DVD, air conditioner and audio equipment.
zFeatures
1) Low voltage operation. (VCC=2.7 to 3.6V)
2) Low current consumption. (ICC=0.3mA, VCC=3V)
3) Superior anti VCC noise characteristics.
4) 5 types of holders available to each set.
zRPM7237 series
Horizontal board
Vertical board
RSIP-A3 (H8)
Sub carrier
frequency
RSIP-A3 (H13)
RSIP-A3 (H5)
RSIP-A3 (H4)
RSIP-A3 (H9)
Height to lens
36.7kHz
15.0mm
9.6mm
15.9mm
7.2mm
12.0mm
RPM7237-H8
RPM7237-H9
RPM7237-H13
RPM7237-H5
RPM7237-H4
zAbsolute maximum ratings (Ta = 25°C)
Parameter
Supply Voltage
Symbol
Limits
Unit
V
V
CC
O
6.3
2.0
Output current
I
mA
°C
Tstg
−30 to +100
Storage temperature
zRecommended operating conditions (Ta = 25°C)
Parameter
Supply voltage
Operating temperature voltage
Symbol
Min.
2.7
Typ.
3.0
25
Max.
3.6
Unit
V
CC
V
Topr
−10
75
°C
Rev.A
1/6
RPM7237 series
Photo Link Module
zBlock diagram
V
CC
100kΩ
Detector
AMP
LIMITER
Comparator
R
OUT
I / V
BPF
GND
zTerminal description
Pin No.
Pin name
Function
1
2
3
VOUT
OUTPUT TERMINAL
GROUND
GND
POWER SUPPLY
V
CC
zElectrical, Optical characteristics (Unless otherwise noted, Ta = 25°C VCC=3V)
Parameter
Symbol
Min.
−
Typ.
300
15
−
Max.
500
−
Unit
µA
m
Conditions
I
CC
Consumption Current
Effective Distance
No outside light, No signal input
L
∗1
8
Outer light condition Ee < 10 (Ix)
2.5
−
−
V
VH
High Level Output Voltage
Low Level Output Voltage
∗1
∗1
∗1
∗1
<
VL
−
0.5
V
Isink
200µA
=
400
400
−
T
ON
ON Pulse Width
OFF Pulse Width
Center frequency
600
600
800
800
−
µs
µs
Outer light condition Ee < 10 (Ix)
Outer light condition Ee < 10 (Ix)
T
OFF
kHz
fo
36.7
45
−
∗2
∗2
−
deg
deg
θ 1/2
θ 1/2
Horizontal half angle
Vertical half angle
−
35
−
∗1 600/600µs burst wave is transmitted by standard transmitter. However, it must be measured after the initial transmission pulse is 10 pulse.
∗2 It is an angle when the linear arrival distance become half.
z Measurement Conditions
(1) Transmit signal
600µs
600µs
Carrier frequency=fo, Duty=50%
Fig.1 Transmit signal
Rev.A
2/6
RPM7237 series
Photo Link Module
(2) Standard transmitter
λ peak=940nm
λ=40nm
∆
io=VOUT / R
20cm
RPM-302B
Standard transmitter
R
V
OUT
Fig.2 Measurement of standard transmitter proofreading
When standard transmitter output the signal at Fig.1 standard photodiode output become io=5µAp-p under the
measurement condition Fig.2.
(The radiant intensity of standard transmitter : 50mW / sr)
RPM-302B : standard photodiode has short current Isc=27µA at Ee=1000(lx)
(using CIE standard light source A)
(3) Measurement effective distance, horizontal & vertical half angle
RPM7237 series
θ
θ
Standard transmitter
Light detector face
illuminance : Ee
Effective distance : L
(θ ; Indicates horizontal and vertical directions)
Fig.3 Measurement condition for effective distance
Effective distance L : Effective distance at θ=0° Fig.3
Horizontal & vertical half angle θ: The angle which effective distance became 50% of L.
Rev.A
3/6
RPM7237 series
Photo Link Module
(4) Output signal
600µs
600µs
Transmit signal
Output signal
Carrier frequency=f
Carrier Duty=50%
0
V
V
CC
H
1/2 VCC
V
L
GND
T
ON
TOFF
Fig.4
(5) Measurement circuit for the output voltage and the consumption current
I
CC
V
CC
A
ROUT
V
CC
RPM7237
V
VH, VL
GND
Fig.5
Rev.A
4/6
RPM7237 series
Photo Link Module
zNotes
(1) All characteristics of the receiver in this specification are specified by supplying burst wave form (Fig.1) with ROHM
standard transmitter (Fig.2 ).
If in case of other burst wave form will be used, please check these spec. Carefully under the evaluations.
(2) When the receiver will be used as the wire-less remote controller, please use the signal method the signal format
which refer to “Measures to prevent mulfunctioning of IR remote-controlled electric home appliances”. (Published July
1987 by Association of Electric Home Appliances)
If using other signal method, signal format, (ex: signal format which not including the leader signal) the receiver might
have chances to miss-function.
(3) Please set up transmitter’s carrier frequency as same as the receiver’s f0 frequency. Otherwise error might be
occurred.
(4) If transmission signal has non-continues carrier, error might be occurred. Continuous carrier is necessary.
T1≠T2
T1
T2
(5) The receiver was designed to use as in-door use only.
Therefore, please understand that the receiver cannot cover all characteristics, in case of using it out-door.
(6) Noise environment (Light noise from inverter Lamp, and other kind of Lamps, Power ripple, electromagnetic noise from
power circuit, and etc) may cause a reduced effective distance.
(7) The receiver may not work properly if receiving signal judgement is done by single pulse due to the
surrounding / environmental noises.
To prevent such misjudgement, please make sure that the receiver is set up to work only when receiving
series of coded signal.
(8) Emitting unit (remote control transmitter) has to be considered about its emitting device function, characteristics and
characteristics of the receiver.
(9) Please connect ‘Holder’ on to the ‘Ground (GND)’ of PCB. If the holder is not connected to the GND, there is a
possibility of worsening the characteristics of product.
(10) Do not supply unnecessary stress to lead and holder.
(11) Please pay careful attention to the lens.
It might have a chance to miss-function when the lens get dust or dirty. And also please do not touch the lens.
(12) In order to prevent products from ESD, human body and solder iron, etc. are required to be grounded.
Rev.A
5/6
RPM7237 series
Photo Link Module
zExternal dimensions (Unit : mm)
9.0
6.0
1.8
7.3
7.30
7.20
3.60
3.60
0.4
1
2 3
0.50
2.54
2.5
0.5
0.6
2.54
1.4
1.4
4.6
6.3
0.6
1.80
RSIP-A3 (H13)
RSIP-A3 (H8)
7.30
15.9
7.3
12.00
3.6
1.8
3.60
0.50
2.54
1
2 3
3.60
2.54
2.54
2.54
4.2
1.80
RSIP-A3 (H4)
RSIP-A3 (H9)
9.0
6.0
1.8
7.3
Pin No.
Rout
0.4
2.5
GND
0.5
0.6
V
CC
0.6
1.4
1.4
4.6
6.3
RSIP-A3 (H5)
Rev.A
6/6
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1
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