RPM971-H14E3A

RPM971-H14
Photo Link Module
7/8
zBlock diagram and application circuit
AMP
18765432
AMP
AMP
POWER
DOWN
/Mode
TXD
TXD
RXD
C1
LEDA
NC
RXD
PWDOWN/Mode
V
CC
VIO
GND
PWDOWN
/Mode
V
CC
VIO
GND
R1
LEDV
CC
zAttached components
C1
R1
Part symbol Recommended value
6.8µF, Ceramic or tantalum
Bigger capacitance is recommended with
much noise from power supply.
Including LED's distribution within ±15deg.
5.6±5%, 1/4W (LEDV
CC
=3.0V)
10±5%, 1/4W (LEDV
CC
=3.7V)
18±5%, 1/4W (LEDV
CC
=5.0V)
Ex.)TCFGA1A685M8R(ROHM)
Notice
In case of using R1 with different condition from the above, formula is as follows :
LED resistance value : R1 [], LED average consumption current : ILED [mA], Supply voltage : VLEDV
CC
[V], minimum
necessary of irradiant intensity Ie1 [mW / sr]
R1 = 170 × (VLEDV
CC
1.45) / Ie1 5 []
ILED = Duty × (VLEDV
CC
1.36) / (R1+4) [A]
Duty : LED duty at emitting
Please set up to be ILED < 180[mA] (Duty 25%).
RPM971-H14
Photo Link Module
8/8
zNotes
1) VLEDV
CC
(1pin), V
CC
(6pin) and V
IO
(7pin)
There is no problem even if it is supplied separately from each power supply such as a fix voltage power supply and a
battery power supply.
But, use it in the recommendation power supply voltage range.
2) Caution in designing board lay-out
To get maximum potential from RPM971-H14, please keep in mind following instruction.
The line of RXD (4pin) should be connected at backside via through hole close to RPM971-H14 pin lead. Better not
to be close to photo diode side (8pin side).
This is to minimize feedback supplied to photo diode from RXD.
The parts which generate noise such as DC / DC converter should be one’s placed at more than a radius of 1.0cm
away from photo diode (8pin side).
As for C1 between 6 - 8 pins, it should be one’s placed close to RPM971-H14.
3) Notes
Please be sure to set up the TXD (3pin) input to be “L” (under 0.6V) except transmitting data.
(For < 90µ sec. ON duty < 25%).
Powerdown current might increase if exposed by strong light (ex. direct sunlight) at powerdown mode.
Please use by the signal format which is specified by IrDA Ver1.3 (Low Power).
There might be on error if used by different signal format.
<Communication rate and pulse continuous time>
Signaling Rate Modulation
2.4kbit/s RZI
Rate Tolerance
% of Rate
Pulse Duration
Minimum
Pulse Duration
Nominal
Pulse Duration
Maximum
+/ 0.87 1.41µs 78.13µs 88.55µs
9.6kbit/s RZI
+/ 0.87 1.41µs 19.53µs 22.13µs
19.2kbit/s RZI
+/ 0.87 1.41µs 9.77µs 11.07µs
38.4kbit/s RZI
+/ 0.87 1.41µs 4.88µs 5.96µs
57.6kbit/s RZI
+/ 0.87 1.41µs 3.26µs 4.34µs
115.2kbit/s RZI
+/ 0.87 1.41µs 1.63µs 2.23µs
0.576Mbit/s RZI
+/ 0.1 295.2ns 434.0ns 520.8ns
1.152Mbit/s RZI
+/ 0.1 147.6ns 217.0ns 260.4ns
4.0Mbit/s
single pulse
double pulse
4PPM
4PPM
+/ 0.01 115.0ns
125.0ns 135.0ns
+/ 0.01 240.0ns 250.0ns 260.0ns
Please pay attention to the lens carefully.
Dusts or scratch on the lens may effect the characteristics of product, please handle it with care.
4) Eye safe
Eye safe is based on EN60825-1(IEC60825-1 amendment 2), Class1 Eye safe.
Appendix
Appendix1-Rev1.1
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.
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.
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.

RPM971-H14E3A

Mfr. #:
Manufacturer:
ROHM Semiconductor
Description:
Infrared Transceivers IRDA IR COMM SIDE VIEW W/SHIELD
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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