ROHM RPM7240-H4R Technical data

RPM7240-R series

Photo Link Module

IR Receiver Module

RPM7240-R series

RPM7240-R series are remote control rec eiver modul e. Small-size d, light- weight, and low voltag e operated (from 2. 7V)
modules have been achieved by using resin mold.

zCenter frequency

40.0kHz

zApplications

All household electric appliance s such as TV, DVD, air conditioner and audio equ ipment.

zFeatures

1) Low voltage operation. (V

2) Low current consumption. (I

3) Superior anti V

CC

4) 5 types of holders available to each set.

zRPM7240-R series

CC

=2.7 to 3.6V)

CC

=0.3mA, VCC=3V)

noise characteristics.

SIDE VIEW TOP VIEW

RSIP-A3 (H9)

12.0mm

RPM7240-H9R

Height to lens

Products No.

RSIP-A3 (H13)

15.0mm

RPM7240-H13R

RSIP-A3 (H5)

9.6mm

RPM7240-H5R

RSIP-A3 (H4)

15.9mm

RPM7240-H4R

RSIP-A3 (H8)

7.2mm

RPM7240-H8R

zAbsolute maximum ratings (Ta = 25°C)

Parameter Symbol
Supply Voltage
Output current
Storage temperature
Operating temperature voltage

Limits

CC

V

O

I

Tstg

Topr °C

6.3

2.0

−30 to +100

−10 to +75

Unit

V

mA

°C

zRecommended operating conditions (Ta = 25°C)

Parameter Symbol Min. Typ. Max. Unit

V

Supply voltage

CC

3.0 V2.7 3.6

Rev.B 1/6

RPM7240-R series

T

D

Photo Link Module

zBlock diagram

V

CC

100kΩ

Detector

ComparatorLIMITER

R

GN

OU

I / V

AMP

BPF

zT ermina l description

Pin namePin No. Function
1V
2
3

OUT

GND

V

CC

OUTPUT TERMINAL
GROUND

POWER SUPPLY

zElectrical, Optical characteristics (Unless otherwise noted, Ta = 25°C V

Parameter Symbol Min. Typ. Max. Unit Conditions

CC

Consumption Current No outside light, No signal input
Effective Distance
High Level Output Voltage
Low Level Output Voltage
ON Pulse Width
OFF Pulse Width
Center frequency
Horizontal half angle
Vertical half angle

∗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.

I

L
V
V

T

ON

T

OFF

fo

θ 1/2
θ 1/2

H

L

2.5

400
400

300 µA

−

8

−

−

−

−

15

−

−

600
600

40.0
45
35

500

0.5

800

−

−

CC

=3V)

m−

Outer light condition Ee < 10 (Ix)

V−
V

µs
µs800

kHz−
deg
deg

<

Isink

200µA

=
Outer light condition Ee < 10 (Ix)
Outer light condition Ee < 10 (Ix)

z Measurement Conditions

(1) Transmit signal

∗1
∗1
∗1
∗1

∗1

∗2
∗2

600µs 600µs

Carrier frequency=fo, Duty=50%

Fig.1 Transmit signal

Rev.B 2/6

RPM7240-R series

e

S

Photo Link Module

(2) Stand ard transmitter

λ peak=940nm

∆

λ=40nm

OUT

/ R

20cm

RPM-302B

io=V

Standard transmitter

Fig.2 Measurement of standard transmitter proofreading

R

V

OUT

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=27 µA at Ee=1000(lx)
(using CIE standard light sour ce A)

(3) Measurement effective dista nce, horizonta l & vertical half an gle

RPM7240-R series

θ
θ

tandard transmitter

Light detector fac
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 effe ctive distan ce became 50% of L .

Rev.B 3/6