RPM882-H12
Photo Link Module
IrDA Infrared Communication Module
RPM882-H12
RPM882-H12 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 power down function and low current
consumption at stand-by mode. The ultra small package makes it a perfect fit for mobile devices.
Features
1) Infrared LED, PIN photo diode, LED driver & Receiver frequency formation circuit built in. Improvement 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.
Applications
Mobile phone, PDA, DVC, Digital Still Camera, Printer, Handy Terminal etc.
Absolute maximum ratings
(Ta=25°C)
Parameter
Supply voltage
Input voltage
Operation temperature
Storage temperature
LED peak current
Power dissipation
Symbol
V
max
V
in
(4, 5, 6, 7pin)
Topr
Tstg
I
FP
Pd
Limits
7.0
∗1
−0.3
to V
IO
+0.3
−25
to
+85
−30
to
+100
300
∗2
300
∗3
Unit
V
V
°C
°C
mA
mW
∗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.
Recommended operating conditions
(Ta=25°C)
Parameter
Supply voltage
Interface supply voltage
LED supply voltage
Symbol
V
CC
V
IO
VLEDV
CC
Min.
2.4
1.5
2.6
Typ.
3.0
3.0
3.0
Max.
3.6
V
CC
5.5
Unit
V
V
V
1/9
RPM882-H12
Photo Link Module
Block diagram and application circuit
AMP
GND
1
C1
GND
AMP
2
V
IO
+
V
IO
V
CC
V
CC
AMP
3
TX-RC
4
TX-RC
POWER
DOWN
PWDOWN / LED Mode
PWDOWN / LED Mode
5
6
RXD
RXD
7
TXD
TXD
8
sw
LEDA
R1
(LEDV
CC
)
V
CC
(3pin) ,V
IO
(2pin) and LEDV
CC
(8pin)
can be used on either common power source
or different one
2/9
RPM882-H12
Photo Link Module
Terminal description
Pin No
1
Terminal
GND
Circuit
Ground
Function
2
V
IO
Supply voltage for I/O pins.
(TX-RC, PWDOWN, RXD, TXD)
Power Supply Terminal
For preventing from infection, connect
a capacitor between V
CC
(3pin) and
GND (1pin).
3
V
CC
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.
4
TX-RC
200k
V
IO
5
PWDOWN /
LED Mode
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.
V
IO
PWDOWN
V
IO
300k
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.
6
RXD
V
IO
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.
7
TXD
200k
8
LEDA
LED
LED ANODE Terminal
Other power source can be used
difference between LEDV
CC
and V
CC
.
LED current depends on LED load
resistance value at RC mode.
−
Shield Case
Connect to Ground.
3/9
RPM882-H12
Photo Link Module
Electrical characteristics
(Unless otherwise noted, V
CC
= V
IO
=3.0V, VLEDV
CC
=3.0V, Ta=25°C)
Parameter
Consumption current1
Consumption current2
Data rate
PWDOWN input high voltage
PWDOWN input low voltage
PWDOWN input high current
PWDOWN input low current
<Transmitter>
Symbol
I
CC
1
I
CC
2
Min.
−
−
2.4
Typ.
80
0.01
−
−
−
0
0
Max.
104
0.2
115.2
V
IO
1/3∗V
IO
V
IO
−1.2
1.0
1.0
Unit
µA
µA
kbps
V
V
µA
µA
V
IO
=1.8 to 3.6V
V
IO
=1.5 to 1.8V
V
IO
=1.8 to 3.6V
V
IO
=1.5 to 1.8V
Conditions
PWDOWN=0V At no input light
PWDOWN=V
IO
At no input light
VPDH
VPDL
IPDH
IPDL
2/3∗V
IO
1.2
0
−1.0
−1.0
PWDOWN=V
IO
PWDOWN=0V
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>
VTXH
VTXL
ITXH
ITXL
ILEDA1
ILEDA2
2/3∗V
IO
1.2
0
7.5
−1.0
28
150
−
−
15
0
40
200
V
IO
1/3∗V
IO
V
IO
−1.2
30
1.0
52
245
V
V
µA
µA
mA
mA
V
IO
=1.8 to 3.6V
V
IO
=1.5 to 1.8V
V
IO
=1.8 to 3.6V
V
IO
=1.5 to 1.8V
TXD=V
IO
or TX-RC=V
IO
TXD=0V or TX-RC=0V
TXD=V
IO
, R1=4.7Ω, PWDOWN=0V
TX-RC=V
IO
, R1=4.7Ω, PWDOWN=V
IO
IRXH=
−200µA
IRXL=200µA
C
L
=15pF
C
L
=15pF
C
L
=15pF,
2.4 to 115.2kbps
RXD output high voltage
RXD output low voltage
RXD output rise Time
RXD output fall Time
RXD output pulse width
Receiver latency time
VRXH
VRXL
tRR
tFR
twRXD
tRT
V
CC
−0.4
0
−
−
1.5
−
−
−
35
35
2.3
100
V
IO
0.4
−
−
4.2
200
V
V
ns
ns
µs
µs
Optical characteristics
(Unless otherwise noted, V
CC
= V
IO
=3.0V, VLEDV
CC
=3.0V, Ta=25°C)
Parameter
Peak wave length1 (IrDA Mode)
Peak wave length2 (RC Mode)
Intensity1 (IrDA Mode)
Intensity2 (RC Mode)
Half-angle
Optical pulse width1 (IrDA Mode)
Symbol
λP1
λP2
IE1
IE2
θL/2
TWLED1
Min.
880
850
880
4
30
±15
1.42
Typ.
890
−
890
13
65
±22
1.63
Max.
892
900
920
28
130
−
2.02
Unit
nm
nm
nm
mW/sr
mW/sr
deg
µs
Conditions
ILED=50mA, Duty20%
ILED=50mA, Duty20%,
−20
to 60°C
ILED=200mA, Duty20%
−15°
−15°
θ
L
θ
L
15°
15°
R
1
=4.7Ω
R
1
=4.7Ω
TXD=1.63µs pulse input
TX-RC=10µs pulse input
10% to 90%
R
1
=4.7Ω
R
1
=4.7Ω
Optical pulse width2 (RC Mode)
Rise time / Fall time
Optical over shoot
Edge jitter
Minimum Irradiance in angular
Maximum Irradiance in angular
Input half-angle
Maximum emitting time
TWLED2
Tr/Tf
9.5
−
−
−40
−
500
±15
20.5
10
60
−
−
3.6
−
−
48
10.5
120
25
40
6.8
−
−
120
µs
ns
%
ns
µW/cm
2
Tj
Eemin
Eemax
θD/2
TLEDmax
−15°
θ
L
θ
L
+15°
+15°
mW/cm
2
−15°
deg
µs
TXD=0
V
IO
or TX-RC=0
V
IO
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.
4/9
RPM882-H12
Photo Link Module
LED Operation Mode Table
PWDOWN
(5pin)
L
L
L
H
H
H
L
L
L
TX-RC
(4pin)
L
L
L
L
TXD
(7pin)
L
LED
Emitting Mode
OFF
IrDA
RC
OFF
RC
RC
IrDA Receiver
Operation Condition
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''.
Interface operating timing
(Emitting side)
(1) When TXD output for IrDA and TXD output for remote controller is 1 line.
1
GND
V
IO
V
CC
TX-RC
PWDOWN
RXD
TXD
LEDA
8
IrDA / RC
Controller
V
IO
V
CC
Input
PWDOWN
L
L
H
H
L
TXD
L
Condition
LED Mode
OFF
IrDA
OFF
RC
Recriver circuit
ON
ON
OFF
OFF
LEDV
CC
( "L" )
TX-RC
(4pin)
Min 1µs
Min 1µs
Min 1µs
Min 1µs
TXD
(7pin)
PWDOWN
(5pin)
LED Emitting
Emitting Mode
IrDA
RC
RC
IrDA
∗
If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.
5/9
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