RPM882-H14
Photo Link Module
1/9
IrDA Infrared Communication Module
RPM882-H14
RPM882-H14 is an infrared communication module for IrDA Ver . 1.2 (Low Power). The infrared LED, PIN photo diode,
LSI are all integrated into a single package. This module is designed with pow er down function and low current
consumption at stand-by mode. The ultra small package makes it a perfect fit for mobile devices.
zFeatures
1) Infrared LED, PIN photo di ode, LED dr iver & Receiv er freq uency fo rmation c ircuit built i n. Improvem ent of EMI noise
protection because of Shield Case.
2) Applied to SIR (2.4 to 115.2kbps)
3) Surface mount type.
4) Power dow n function built in.
5) Low volt age operation as 1.5V of interface terminals to controller (TXD, RXD, PWDOWN, TX-RC).
6) Infrared remote control transmission driver built-in.
zA pplications
Mobile phone, PDA, DVC, Digital S till Camera, Printer, Handy Terminal etc.
zAbsolute maximum ratings (Ta=25°C)
Parameter Symbol Limits Unit
Supply voltage Vmax 7.0
∗1
−25 to +85
−30 to +100
V
V−0.3 to VIO+0.3
Operation temperature
Storage temperature
Input voltage
Topr
Tstg
mW
300
∗3
Power dissipation Pd
Vin (4, 5, 6, 7pin)
°C
°C
300
∗2
LED peak current IFP mA
∗1 This applies to all pins basis ground pins (1pin)
∗2 LED Peak Current
<
90µs, On duty 50%
∗3 When glass-epoxy board (70 70 1.6mm) mounted. In case operating environment is over 25°C,
4mW would be reduced per each 1°C stepping up.
zRecommended opera ting conditions (Ta=25°C)
Parameter Symbol Min. Typ. Max. Unit
Supply voltage
Interface supply voltage
LED supply voltage
VCC 3.0 V2.4 3.6
VIO 3.0 V1.5 VCC
VLEDVCC 3.0 V2.6 5.5
RPM882-H14
Photo Link Module
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zBlock diagram and a pplication circuit
AMP
18765 3
AMP
AMP
VCC
VIO
GND
VCC
TX-RC
GND
VIO
TX-RC
PWDOWN / LED Mode
RXD
TXD
LEDA
PWDOWN / LED Mode
RXD
TXD
(LEDVCC)
V
CC
(3pin) ,V
IO
(2pin) and LEDV
CC
(8pin)
can be used on either common power source
or different one
C1
+
4
sw
POWER
DOWN
2
R1
RPM882-H14
Photo Link Module
3/9
zTerminal description
Terminal Circuit Function
Pin No
2
1
V
IO
GND
Supply voltage for I/O pins.
(TX-RC, PWDOWN, RXD, TXD)
Ground
Power Supply Terminal
For preventing from infection, connect
a capacitor between VCC (3pin) and
GND (1pin).
Connect to Ground.
3V
CC
PWDOWN /
LED Mode
RXD
TXD
LEDA
Shield Case
4
5
6
7
8
−
TX-RC
V
IO
V
IO
200k
LED
V
IO
200k
V
IO
V
IO
300k
PWDOWN
RC Transmitting Data Input Terminal
H : LED Emitting
CMOS Logic Level Input
Holding TX-RC='H' status, LED will be
turn off approximately 48µs.
Power-down Control and LED
Intensity switching Terminal
CMOS Logic Level Input
When input is 'H', it will stop the receiving
circuit and Pin-PD current.
H : POWERDOWN (RC transmitting Mode)
L : OPERATION
Receiving Data Output Terminal
CMOS Logic Level Output
When PWDOWN (5pin)= 'H', the RXD
output will be pulled up to V
IO
at
approximately 300kΩ.
Transmitting Data Input Terminal
IrDA TXD input at PWDOWN=L
(Remote control transmitting input at PWDOWN=H
).
H : LED Emitting
CMOS Logic Level Input
Holding TXD="H" status, LED will be
turn off approximately 48µs.
LED ANODE Terminal
Other power source can be used
difference between LEDVCC and VCC.
LED current depends on LED load
resistance value at RC mode.
RPM882-H14
Photo Link Module
4/9
zElectrical characteristics (Unless otherwise noted, V
CC
= V
IO
=3.0V, VLEDV
CC
=3.0V, Ta=25°C)
Parameter Symbol Min. Typ. Max. Unit Conditions
Consumption current1 ICC1
ICC2
VPDH
VPDL
IPDH
IPDL
80 µAPWDOWN=0V At no input light
PWDOWN=VIO At no input light
PWDOWN=VIO
Consumption current2
Data rate
PWDOWN input high voltage
PWDOWN input low voltage
PWDOWN input high current
PWDOWN input low current
TXD/TX-RC input high voltage
TXD/TX-RC input low voltage
RXD output high voltage
RXD output rise Time
RXD output fall Time
RXD output pulse width
Receiver latency time
RXD output low voltage
TXD/TX-RC input high current
TXD/TX-RC input low current
LED anode current (IrDA Mode)
−
0.01
−
0
−
2.4
−
−
2/3∗VIO
1.2
104
µA
0.2
kbps115.2
V
V
VIO
1/3∗VIO
VIO−1.2
<Transmitter>
<Receiver>
VTXH
VTXL
ITXH
ITXL
ILEDA1
VRXH
VRXL
tRR
tFR
tRT
twRXD
PWDOWN=0V
TXD=VIO or TX-RC=VIO
TXD=0V or TX-RC=0V
TXD=VIO, R1=4.7Ω, PWDOWN=0V
TX-RC=VIO, R1=4.7Ω, PWDOWN=VIO
0
−1.0
2/3∗VIO
1.2
0
7.5
−1.0
28
0
−
−
1.5
−
VCC−0.4
0
−1.0
−
−
15
0
40
−
−
35
35
2.3
100
µA
1.0
µA
1.0
V
V
µA
µA
mA
V
V
ns
ns
µs
µs
VIO
1/3∗VIO
VIO−1.2
30
1.0
52
LED anode current (RC Mode) ILEDA2 150 200 mA
245
VIO
0.4
−
−
4.2
200
IRXH=
−200µA
IRXL=200µA
CL=15pF
CL=15pF
CL=15pF, 2.4 to 115.2kbps
VIO=1.8 to 3.6V
VIO=1.5 to 1.8V
VIO=1.8 to 3.6V
VIO=1.5 to 1.8V
VIO=1.8 to 3.6V
VIO=1.5 to 1.8V
VIO=1.8 to 3.6V
VIO=1.5 to 1.8V
zOptical characteristics (Unless otherwise noted, V
CC
= V
IO
=3.0V, VLEDV
CC
=3.0V, Ta=25°C)
Parameter Symbol Min. Typ. Max. Unit Conditions
Peak wave length1 (IrDA Mode) λP1
λP2
θD/2
TLEDmax
TWLED2
Tr/Tf
Tj
890 nm
ILED=200mA, Duty20%
ILED=50mA, Duty20%, −20 to 60°C
ILED=50mA, Duty20%
TXD=0 V
IO
or TX-RC=0 V
IO
TXD=1.63µs pulse input R1=4.7Ω
TX-RC=10µs pulse input R1=4.7Ω
10% to 90%
Peak wave length2 (RC Mode)
Optical pulse width2 (RC Mode)
Optical over shoot
Edge jitter
Input half-angle
Maximum emitting time
880
890880
9.5 10
892
−nm
nm
850 900
920
µs
deg
µs
10.5
−−
−
−
48
−40
±15
20.5
%25
Rise time / Fall time 60−ns120
ns40
EemaxMaximum Irradiance in angular mW/cm
2
−
500 −
EeminMinimum Irradiance in angular µW/cm
2
3.6
−6.8
−
120
IE1Intensity1 (IrDA Mode) 134 mW/sr28
IE2Intensity2 ( RC Mode) 6530 mW/sr130
θL/2Half-angle ±22±15 deg−
TWLED1
Optical pulse width1 (IrDA Mode) 1.631.42 µs
2.02
−15° θL 15° R1=4.7Ω
−15° θL 15° R1=4.7Ω
−15° θL +15°
−15° θL +15°
1. This product is not designed for protection against radioactive rays.
2. This product dose not include laser transmitter.
3. This product includes one PIN photo diode.
4. This product dose not include optical load.
RPM882-H14
Photo Link Module
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zLED Operation Mode Table
PWDOWN
(5pin)
L
L
L
H
H
H
TX-RC
(4pin)
L
L
L
L
TXD
(7pin) LED
Emitting Mode IrDA Receiver
Operation Condition
L
L
L
L
OFF
IrDA
RC
OFF
RC
RC
ON
ON
ON
OFF
OFF
OFF
Notes) Please be sure to set up the TX-RC (4pin) and the TXD (7pin) input to be ''L'' (under 0.3V)
except transmitting data (for
<
90µs. ON Duty 50%).
of TX-RC (4pin) and TXD (7pin) in the table above is supposed to be the pulse input.
When either TX-RC (4pin) input TXD (7pin) input keeps the state of ''H'' (more than appproximately 48µs)
,
LED will be turned off due to LED pulse width limiting circuit if the pulse is input from the other terminal.
Therefore, don't use as the normal transmitting is impossible.
Please input the pulse when both TX-RC (4pin) and TXD (7pin) are ''L''.
zInterface operating timing
(Emitting side)
(1) When TXD output for IrDA and TXD output for remote controller is 1 line.
IrDA IrDARC RC
TXD
(7pin)
Min 1µs Min 1µsMin 1µs Min 1µs
TX-RC
(4pin)
PWDOWN
(5pin)
LED Emitting
∗
If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.
E
mitting Mode
( "L"
)
VCC
GND
1
8
VIO
VCC
LEDVCC
VIO
TX-RC
PWDOWN
IrDA / RC
Controller
RXD
TXD
LEDA
Input Condition
PWDOWN
L
L
H
H
TXD LED Mode
L
L
OFF
IrDA
OFF
RC
Recriver circuit
ON
ON
OFF
OFF
RPM882-H14
Photo Link Module
6/9
(2) When TXD output for IrDA and TXD output for controller are different lines.
VCC
GND
1
8
V
IO
V
CC
LEDV
CC
VIO
TX-RC
PWDOWN
IrDA / RC
Controller
RXD
TXD
LEDA
RC Transmitting
Controller
(BU787X etc)
(2-a) RC transmitting mode at IrDA receiver active condition.
IrDA IrDARC RC
TXD
(7pin)
Min 1µsMin 1µs
TX-RC
(4pin)
PWDOWN
(5pin)
LED Emitting
∗
If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.
E
mitting Mode
Input Condition
PWDOWN
L
L
L
H
TX-RC LED Mode
L
L
L
OFF
IrDA
RC
OFF
Recriver circuit
ON
ON
ON
OFF
TXD
L
L
L
RPM882-H14
Photo Link Module
7/9
(2-b) RC transmit mode at IrDA receiver pow er down condition.
IrDA IrDARC RC
TXD
(7pin)
Min 1µsMin 1µs
Min 1µsMin 1µs
TX-RC
(4pin)
PWDOWN
(5pin)
LED Emitting
∗
If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.
E
mitting Mode
Input Condition
PWDOWN
L
L
H
H
TX-RC LED Mode
L
L
L
OFF
IrDA
RC
OFF
Recriver circuit
ON
ON
OFF
OFF
TXD
L
L
L
(Receiving side)
Min 200µs
L
ight input
P
WDOWN RXD
(
5pin)
R
XD
(
6pin)
Pull up to V
IO
at
approximately 300kΩ
∗
RXD output width is fixed approximately 2.3µs.
Note RXD output become stable after 200µs since PWDOWN is changed from H to L.
RXD output could be unstable at H to L within 200µs.
RPM882-H14
Photo Link Module
8/9
zA ttac hed component s
Recommended values
Part symbol
C1
Recommended value Notice
1µF, tantalum or ceramic
Ex.) TCFGA1A105M8R (ROHM) Bigger capacitance is recommended with much noise from power supp
ly
R1 4.7Ω±5%, 1/8W
(VLEDV
CC
=3V) At LED Emitting Duty=20%
[LED current set-up method for Remote control mode]
In case of using R1 with dif ferent condition from the above, formula is as follow s :
LED resistance value : R1[Ω], LED average consumption current : ILED[mA], Supply voltage : VLEDV
CC
[V],
minimum necessary of irradiant intensity le1 [mW / sr]
(Including LED’s distribution w ithin ±15deg)
R1=166 × (VLEDV
CC
−1.28) / le1−5.0
ILED=Duty × (VLEDVCC−1.28) / (R1 +3.5)
Duty : LED duty at emitting
∗ Please set up to be ILED / Duty < 250[mA] (Duty ≤ 50%)
∗ At IrDA Mode, LED current is constantly approximately 40mA.
(Reference) In case of using R1, typical intensity (le1typ) and maximum intensity (le1max) on
axis are described as below.
le1typ=300 × (VLEDV
CC
−1.28) / (R1+3.5)
le1max=600 × (VLEDV
CC
−1.28) / (R1+3.5)
zNotes
1) LEDV
CC
(8pin), V
CC
(3pin) and V
IO
(2pin)
•
Other power source can be used dif ference between LEDV
CC
and V
CC
and V
IO
.
(V
IO
< V
CC
+ 0.3V)
2) Caution in designing board lay-out
To get maximum potential from RPM882-H14, please keep in mind following instruction.
•
The line of RXD (6pin) should be connected at backside via through hole close to RPM882-H14 pin lead. Better not to
be close to photo diode side (1pin).
⇒This is to minimize feedback supplied to photo diode from RXD.
•
As for C1 between 1-3 pin should be placed close to RPM882-H14.
•
Better to be placed more than 1.0cm in radius from photo diode (pin1 side) and also aw ay from the part s which
generates noise, such as DC
/
DC converter .
3) Notes
•
Please be sure to set up the TX-RC (4pin) and the TXD (7pin) input to be “L” (under 0.3V) except transmitting data
(for < 90µs, ON duty ≤ 50%).
•
Power dow n current might increase if exposed by strong light (ex. direct sun light) at powerdow n mode.
•
Please use by the signal format at IrDA operating mode which is specified by IrDA Ver1.2 (2.4k to 115.2kbps). There
might be on error if used by dif ferent signal format.
•
Please pay attention to the lens carefully.
Dusts of scratch on the lens may effect the characteristics of product. Please handle it w ith care.
RPM882-H14
Photo Link Module
9/9
4) Eye safe
•
IEC60825-1 (IEC60825-1 amendment2), Class 1 Eye Safe.
5) LED current derating and amdient temperature
The relation between LED peak current and maximum ambient temperature is show n below .
We recommend you to use w ithin the range as indicated in below.
When glass-epoxy board (70×70×1.6mm) mounted.
−200 2040608010
0
AMBIENT TEMPERATURE : Ta (°C)
0
MAXIMUM LED PEAK CURRENT : Iledp (mA
)
50
100
150
200
250
300
Duty:20%
Duty:30%
Duty:40%
Duty:50%
Duty:10%
zExternal dimensions (Unit : mm)
RSLP8-H14
18
NOTE
UNIT : mm
A
LED
PinPD
1.TOLERANCE : ±0.2mm
2.COPLANARITY : 0.1mmMAX
ETH648
0.6 0.48
2.8
8.0
1.0
0.15±0.1
0.76
0.15±0.1
0.78
2.2
1.1
1.4
4.0
0.37±0.1
2.59
(0.13)
P0.95×7=6.65
0.95
2.2
0.75
2.67
R1.0
R1.1
0.68±0.1
0.6±0.1
2.9
A Part Size (Shield Case underside size)
2.2
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.
