RPM841-H11
Photo Link Module
IrDA Infrared Communication Module
RPM841-H11
RPM841-H11 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) Super small package (W=6.8mm, D=2.44mm, H=1.5mm).
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
Symbol
V
max
V
in
(3, 4, 5pin)
Topr
Tstg
Limits
7.0
∗
−0.3
to V
CC
+0.3
−30
to
+85
−40
to
+100
Unit
V
V
°C
°C
∗
This applies to all pins basis ground pins (7pin)
Recommended operating conditions
(Ta=25°C)
Parameter
Supply voltage
LED supply voltage
Symbol
V
CC
VLEDV
CC
Min.
2.4
2.6
Typ.
3.0
3.0
Max.
3.6
5.5
Unit
V
V
1/9
RPM841-H11
Photo Link Module
Block diagram and application circuit
1
LEDA
R1
(LEDV
CC
)
2
TX-RC
TX-RC
3
TXD
TXD
AMP
POWER
DOWN
4
RXD
RXD
AMP
5
PWDOWN
PWDOWN
6
V
CC
+
7
V
CC
AMP
GND
C1
GND
AMP
V
CC
(6pin) and LEDV
CC
(1pin)
can be used on either common power source
or different one
2/9
RPM841-H11
Photo Link Module
Terminal description
Pin No
Terminal
Circuit
1
1
LEDA
LED
Function
LED ANODE Terminal
Other power source can be used
difference between LEDV
CC
and V
CC
.
V
CC
2
TX-RC
240k
RC Transmitting Data Input Terminal
H : LED Emitting (Remote Control Mode)
CMOS Logic Level Input
Holding TX-RC='H' status, LED will be
turn off approximately 48µs.
V
CC
3
TXD
240k
Transmitting Data Input Terminal
TXD input at PWDOWN=L
H : LED Emitting
CMOS Logic Level Input
Holding TXD="H" status, LED will be
turn off approximately 48µs.
V
CC
PWDOWN
4
RXD
300k
Receiving Data Output Terminal
CMOS Logic Level Output
When PWDOWN (5pin)= 'H', the RXD
output will be pulled up to V
CC
at
approximately 300kΩ.
V
CC
PWDOWN
5
Power-down Control Terminal
H : POWERDOWN
L : OPERATION
CMOS Logic Level Input
When input is 'H', it will stop the receiving
circuit and Pin-PD current.
6
V
CC
Power Supply Terminal
For preventing from infection, connect
a capacitor between V
CC
(6pin) and
GND (7pin).
Ground Termianl
Connect to Ground.
7
−
GND
Shield Case
3/9
RPM841-H11
Photo Link Module
Electrical characteristics
(Unless otherwise noted, V
CC
= 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>
TXD input high voltage
TXD input low voltage
TX-RC input high voltage
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
VRXH
VRXL
tRR
tFR
twRXD
tRT
V
CC
−0.4
0
−
−
1.7
−
−
−
25
25
2.6
40
V
CC
0.4
100
100
3.5
200
V
V
ns
ns
µs
µs
IRXH=
−200µA
IRXL=200µA
C
L
=15pF
C
L
=15pF
C
L
=15pF,
2.4 to 115.2kbps
VTXH
VTXL
VTX-RCH
VTX-RCL
ITXH
ITXL
ILEDA1
ILEDA2
2/3∗V
CC
0
1.5
0
6.2
−1.0
−
−
−
−
−
−
12.5
0
50
211
V
CC
1/3∗V
CC
V
CC
0.5
25
1.0
70
245
V
V
V
V
µA
µA
mA
mA
V
CC
=2.4 to 3.6V
V
CC
=2.4 to 3.6V
V
CC
=2.4 to 3.6V
V
CC
=2.4 to 3.6V
TXD=V
CC
or TX-RC=V
CC
TXD=0V or TX-RC=0V
TXD=V
CC
TX-RC=V
CC
, R1=2.2Ω
VPDH
VPDL
IPDH
IPDL
Symbol
I
CC
1
I
CC
2
Min.
−
−
2.4
2/3∗V
CC
0
−1.0
−1.0
Typ.
90
0.01
−
−
−
0
0
Max.
120
0.2
115.2
V
CC
1/3∗V
CC
1.0
1.0
Unit
µA
µA
kbps
V
V
µA
µA
V
CC
=2.4 to 3.6V
V
CC
=2.4 to 3.6V
PWDOWN=V
CC
PWDOWN=0V
Conditions
PWDOWN=0V At no input light
PWDOWN=V
CC
At no input light
Optical characteristics
(Unless otherwise noted, V
CC
= 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)
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
Tj
Eemin
Eemax
θD/2
TLEDmax
Symbol
λP1
λP2
IE1
IE2
θL/2
TWLED1
TWLED2
Tr/Tf
Min.
880
850
880
4
25
±15
1.42
9.5
−
−
−40
−
500
±15
20.5
Typ.
888
−
890
12
50
−
1.63
10
20
−
−
4.0
−
−
48
Max.
892
900
920
28
120
−
2.02
10.5
120
25
40
8.1
−
−
96
Unit
nm
nm
nm
mW/sr
mW/sr
deg
µs
µs
ns
%
ns
µW/cm
2
−15°
θ
L
θ
L
+15°
+15°
mW/cm
2
−15°
deg
µs
TXD=0
V
CC
or TX-RC=0
V
CC
TXD=1.63µs pulse input
TX-RC=10µs pulse input
10% to 90%
R
1
=2.2Ω
R
1
=2.2Ω
Conditions
ILED=50mA, Duty20%
ILED=50mA, Duty20%,
−20
to 60°C
ILED=200mA, Duty20%
−15°
−15°
θ
L
θ
L
15°
15°
R
1
=2.2Ω
R
1
=2.2Ω
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
RPM841-H11
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
OFF
RC
IrDA Receiver
Operation Condition
ON
ON
ON
OFF
OFF
OFF
Notes) Please be sure to set up the TX-RC (2pin) and the TXD (3pin) input to be ''L'' (under 0.3V)
except transmitting data (for
<
90µs. ON Duty 50%).
of TX-RC (2pin) and TXD (3pin) in the table above is supposed to be the pulse input.
When either TX-RC (2pin) input TXD (3pin) 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 (2pin) and TXD (3pin) are ''L''.
Interface operating timing
(Emitting side)
(1) When TXD output for IrDA and TXD output for controller are different lines.
1
LEDA
LEDV
CC
RC Transmitting
TX-RC
Controller
(BU787X etc)
TXD
RXD
IrDA
Controller
PWDOWN
V
CC
V
CC
GND
7
5/9
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