Datasheet RPM882-H14 Datasheet (ROHM)

RPM882-H14

Photo Link Module

IrDA Infrared Communication Module

RPM882-H14

RPM882-H14 is an infrared communication module for IrDA V er. 1.2 (Low Power). The infrared LED, PIN photo diode,
LSI are all integrated into a single package. This module is designed with power dow n 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 diode, LED driv er & Receiv er freq uency form ation circ uit built in. Impr ovement of EMI noise
protection because of Shield Case.

2) Applied to SIR (2.4 to 115.2kbps)

3) Surface mount type.

4) Power down function built in.

5) Low voltage operation as 1.5V of interface terminals to controller (TXD, RXD, PWDOWN, TX-RC).

6) Infrared remote control transmission driver built-in.

zApplicat ions

Mobile phone, PDA, DVC, Digital Still Camera, Printer, Handy T erminal etc.

zAbsolute maximum ratings (Ta=25°C)

Parameter Symbol
Supply voltage V
Input voltage
Operation temperature
Storage temperature
LED peak current IFP mA
Power dissipation

∗1 This applies to all pins basis ground pins (1pin)
∗2 LED Peak Current
∗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.

<

90µs, On duty 50%

max 7.0

V

in (4, 5, 6, 7pin)

Topr
Tstg

Pd

Limits

∗1

IO+0.3

−25 to +85

−30 to +100

∗2

300

∗3

300

zRecommended operating conditions (Ta=25°C)

Parameter Symbol Min. Typ. Max. Unit
Supply voltage
Interface supply voltage
LED supply voltage

V

CC 3.0 V2.4 3.6

IO 3.0 V1.5 VCC

V

VLEDVCC 3.0 V2.6 5.5

Unit

V
V−0.3 to V

°C
°C

mW

1/9

Photo Link Module

zBlock diagram and application c ircuit

RPM882-H14

AMP

AMP

AMP

POWER

DOWN

sw

GND

18765 3

V

IO

2

CC

V

TX-RC

4

PWDOWN / LED Mode

RXD

TXD

LEDA

VCC (3pin) ,VIO (2pin) and LEDVCC (8pin)
can be used on either common power source
or different one

C1

+

R1

GND

VIO

VCC

TX-RC

PWDOWN / LED Mode

RXD

TXD

(LEDV

CC)

2/9

Photo Link Module

).

zT erminal description

Pin No

Terminal

RPM882-H14

Circuit Function

1

2

3V

4

5

GND

IO

V

CC

TX-RC

PWDOWN /
LED Mode

Ground

Supply voltage for I/O pins.

(TX-RC, PWDOWN, RXD, TXD)

Power Supply Terminal

For preventing from infection, connect
a capacitor between V
GND (1pin).

V

IO

200k

V

IO

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

H : POWERDOWN (RC transmitting Mode)
L : OPERATION
CMOS Logic Level Input

When input is 'H', it will stop the receiving
circuit and Pin-PD current.

CC

(3pin) and

V

6

7

8

−

RXD

TXD

LEDA

Shield Case

PWDOWN

IO

V

IO

300k

V

IO

200k

LED

Receiving Data Output Terminal

CMOS Logic Level Output
When PWDOWN (5pin)= 'H', the RXD
output will be pulled up to V
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 LEDV
LED current depends on LED load
resistance value at RC mode.

Connect to Ground.

IO

at

CC

and VCC.

3/9

Photo Link Module

zElectrical characteristics (Unless otherwise noted, V

Parameter
Consumption current1
Consumption current2
Data rate

PWDOWN input high voltage

PWDOWN input low voltage

PWDOWN input high current
PWDOWN input low current

<Transmitter>

TXD/TX-RC input high voltage

TXD/TX-RC input low voltage

TXD/TX-RC input high current
TXD/TX-RC input low current
LED anode current (IrDA Mode)

LED anode current (RC Mode)

<Receiver>

RXD output high voltage
RXD output low voltage
RXD output rise Time
RXD output fall Time
RXD output pulse width
Receiver latency time

Symbol Min. Typ. Max. Unit Conditions

I
I

CC1
CC2

−

−

2.4

2/3∗V

VPDH

VPDL

IPDH
IPDL

VTXH

VTXL

ITXH

ITXL

ILEDA1

ILEDA2

VRXH
VRXL

tRR
tFR

twRXD

tRT

1.2
0

−1.0

−1.0

2/3∗VIO

1.2
0

7.5

−1.0
28

150

V

CC−0.4

0

−

−

1.5

−

IO

zOptical characteristics (Unless otherwise noted, V

Parameter

Peak wave length1 (IrDA Mode)

Peak wave length2 (RC Mode)

Optical pulse width1 (IrDA Mode)

Optical pulse width2 (RC Mode)
Rise time / Fall time
Optical over shoot
Edge jitter

Input half-angle
Maximum emitting time

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.

Symbol

λP1

λP2

IE1Intensity1 (IrDA Mode) 134 mW/sr28

IE2Intensity2 ( RC Mode) 6530 mW/sr130

θL/2Half-angle ±22±15 deg−

TWLED1

TWLED2

Tr/Tf

Tj

EeminMinimum Irradiance in angular

EemaxMaximum Irradiance in angular

θD/2

TLEDmax

CC

Min. Typ. Max. Unit
880
850 900

9.5 10

−40

− 6.8

500 −
±15

20.5

CC

= VIO=3.0V , VLEDVCC=3.0V , Ta=25°C)

80

104

0.01

0.2

−

−

V

1/3∗VIO

−

VIO−1.2

1.0

0

1.0

0

V

−

1/3∗VIO

−

VIO−1.2

15

40

200 mA

30

1.0

0

52

245

−

V

0.4

−

35
35

2.3

100

4.2

200

µA

PWDOWN=0V At no input light

µA

PWDOWN=V

kbps115.2

VIO=1.8 to 3.6V

IO

IO

IO

−

−

V

IO=1.5 to 1.8V

V
V

IO=1.8 to 3.6V

V

IO=1.5 to 1.8V

V

PWDOWN=V

µA

PWDOWN=0V

µA

IO=1.8 to 3.6V

V

V

V

IO=1.5 to 1.8V
IO=1.8 to 3.6V

V

V

IO=1.5 to 1.8V

V

µA

TXD=V

µA

TXD=0V or TX-RC=0V

mA

TXD=V
TX-RC=V

V

IRXH=

V

IRXL=200µA

ns

C

L

=15pF

ns

C

L

=15pF

µs

C

L

=15pF, 2.4 to 115.2kbps

IO

or TX-RC=V

IO

, R1=4.7Ω, PWDOWN=0V

IO

, R1=4.7Ω, PWDOWN=V

−200µA

µs

= VIO=3.0V , VLEDVCC=3.0V , Ta=25°C)

890 nm

890880

1.631.42

3.6

892

− nm
920

2.02

10.5

60−

−−

−

µW/cm

−

−

48

mW/cm

−

120

ILED=50mA, Duty20%
ILED=50mA, Duty20%, −20 to 60°C

nm

ILED=200mA, Duty20%

−15° θL 15° R1=4.7Ω

−15° θL 15° R1=4.7Ω

TXD=1.63µs pulse input R1=4.7Ω

µs

µs

TX-RC=10µs pulse input R
10% to 90%

ns120

%25

ns40

2

−15° θL +15°

2

−15° θL +15°

deg

µs

TXD=0 V

IO

RPM882-H14

IO At no input light

IO

IO

Conditions

1

=4.7Ω

or TX-RC=0 V

IO

IO

4/9

Photo Link Module

,

E

)

zLED Operation Mode Table

PWDOWN

(5pin)

L
L

TX-RC

(4pin)

L

L
L
H
H

L

L
H

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

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''.

TXD

(7pin)

L

L
L

L

<

90µs. ON Duty 50%).

LED

Emitting Mode

OFF
IrDA

RC

OFF

RC
RC

IrDA Receiver

Operation Condition

ON
ON

ON
OFF
OFF
OFF

zInterface operating timing
(Emitting side)

(1) When TXD output for IrDA and TXD output for remote controller is 1 line.

GND

1

V

8

IO

V

CC

TX-RC

PWDOWN

RXD

TXD

LEDA

V

IO

V

CC

LEDV

IrDA / RC
Controller

CC

PWDOWN

L
L
H
H

RPM882-H14

Input Condition

TXD LED Mode

L

L

OFF
IrDA
OFF

RC

Recriver circuit

ON

ON
OFF
OFF

( "L"

TX-RC

(4pin)

TXD

(7pin)

PWDOWN

(5pin)

LED Emitting

mitting Mode

∗

If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.

5/9

Min 1µs Min 1µs

IrDA IrDARC RC

Min 1µs Min 1µs

Photo Link Module

E

(2) When TXD output for IrDA and TXD output for controller are different lines.

1

GND

V

IO

V

CC

TX-RC

PWDOWN

V

IO

V

CC

RC Transmitting
Controller

(BU787X etc)

RPM882-H14

RXD

TXD

LEDA

8

(2-a) RC transmitting mode at IrDA receiver active condition.

Input Condition

TX-RC

(4pin)

TXD

(7pin)

PWDOWN

L
L
L
H

TX-RC LED Mode

L
L

L

Min 1µs

TXD

L

L
L

OFF
IrDA

RC

OFF

LEDV

IrDA / RC
Controller

CC

Recriver circuit

ON
ON
ON

OFF

Min 1µs

PWDOWN

(5pin)

LED Emitting

mitting Mode

∗

If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.

IrDA IrDARC RC

6/9

Photo Link Module

E

L

P
(

R
(

(2-b) RC transmit mode at IrDA receiver power dow n condition.

Input Condition

PWDOWN

L
L
H
H

TX-RC LED Mode

L
L

L

TXD

L

L
L

OFF
IrDA

RC

OFF

Recriver circuit

ON

ON
OFF
OFF

RPM882-H14

Min 1µs

TX-RC

(4pin)

TXD

(7pin)

PWDOWN

(5pin)

LED Emitting

mitting Mode

∗

If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.

Min 1µs

IrDA IrDARC RC

Min 1µs

Min 1µs

(Receiving side)

ight input

Min 200µs

WDOWN RXD

5pin)

XD

6pin)

∗

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.

7/9

Pull up to VIO at
approximately 300kΩ

RPM882-H14

ly

Photo Link Module

zAtt ached compone nts
Recommended values

Part symbol

C1

R1

[LED current set-up method for Remote control mode]
In case of using R1 with different condition from the above, formula is as follows :
LED resistance value : R1[Ω], LED average consumption current : ILED[mA], Supply voltage : VLEDV
minimum necessary of irradiant intensity le1 [mW / sr]
(Including LED’s distribution within ±15deg)

R1=166 × (VLEDV
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

le1typ=300 × (VLEDV
le1max=600 × (VLEDV

zNotes

1) LEDV

•

Other power source can be used difference between LEDVCC and VCC and VIO.

IO

(V

2) Caution in designing board lay-out
T o get maximum potential from RPM882-H14, please keep in mind follow ing 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 away from the parts w hich

generates noise, such as DC

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 down current might increase if exposed by strong light (ex. direct sunlight) at pow erdown mode.

•

Please use by the signal format at IrDA operating mode w hich is specified by IrDA Ver1.2 (2.4k to 1 15.2kbp s). There

might be on error if used by different signal format.

•

Please pay attention to the lens carefully.

Dusts of scratch on the lens may effect the characteristics of product. Please handle it with care.

1µF, tantalum or ceramic

Ex.) TCFGA1A105M8R (ROHM)

4.7Ω±5%, 1/8W
(VLEDV

CC

axis are described as below.

CC

(8pin), VCC (3pin) and VIO (2pin)

< VCC + 0.3V)

Recommended value

CC

=3V)

−1.28) / le1−5.0

CC

−1.28) / (R1+3.5)

CC

−1.28) / (R1+3.5)

/

DC converter.

Notice

Bigger capacitance is recommended with much noise from power supp

At LED Emitting Duty=20%

CC

[V],

8/9

Photo Link Module

0

)

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 shown below.
We recommend you to use within the range as indicated in below .

When glass-epoxy board (70×70×1.6mm) mounted.

300

250

200

150

100

50

0

−200 2040608010

MAXIMUM LED PEAK CURRENT : Iledp (mA

Duty:50%

Duty:40%

Duty:30%

Duty:20%

AMBIENT TEMPERATURE : Ta (°C)

Duty:10%

zExternal dimensions (Unit : mm)
RSLP8-H14

RPM882-H14

R1.1

2.2

PinPD

1.0

2.9

0.68±0.1

8.0

1.1

1.4

2.8

4.0

18

P0.95×7=6.65

LED

A

0.37±0.1

0.95

0.6 0.48

R1.0

0.15±0.1

(0.13)

2.2

0.78

2.59

2.67

0.6±0.1

A Part Size (Shield Case underside size)

NOTE

1.TOLERANCE :

2.COPLANARITY : 0.1mmMAX

UNIT : mm

0.15±0.1

0.76

2.2

±0.2mm

ETH648

0.75

9/9

Appendix

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.

Notes

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