ROHM RPM882-H14 Technical data
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
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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)
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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.
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