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RPM872-E4

P1-P3P4-P6P7-P7
RPM872
RPM872
Photo Link Module
Rev.B 1/6
IrDA infrared communication module
RPM872
RPM872 is an infrared communication module for IrDA Ver. 1.2 (Low Power). The infrared LED, PIN photo diode, and
waveform shaping LSI are all integrated into one single package. This module is designed for low power consumption.
The very small package makes it a perfect fit for mobile devices.
zFeatures
1) Applied to IrDA Ver. 1.2. (Low Power)
2) Designed for low power consumption at waiting mode (75µA).
3) Low operating voltage
V
CC
=2.0V to 3.6V
VIO=1.5V to 3.6V
VLED=2.6V to 5.5V
4) Small package.
5) Power down function.
zApplications
Cellular phones, PDA, Digital still camera, Handy terminals, and other portable equipments.
zAbsolute maximum ratings (Ta=25°C)
Power dissipation
Supply voltage
Operating temperature
Storage temperature
Parameter Symbol
Limits
Unit
V
CC
7.0
−20 to +85
−30 to +100
V
mW100
Topr
Tstg
Pd
˚C
˚C
zRecommended operating conditions (Ta = 25°C)
Supply voltage
Parameter Symbol Min. Typ. Max. Unit
V
CC
3.0 V2.0 3.6
VLEDA
VIO
3.0 V2.6 5.5
3.0 V1.5 V
CC
RPM872
Photo Link Module
Rev.B 2/6
zBlock diagram and application circuit
AMP
18765432
AMPAMP
POWER
DOWN
V
CC
VIO
V
CC
V
CC
(3pin) and VLEDA(8pin) can be used on
either common power source or different one.
GND
C1
GND
VIO
GND
PWDOWN
RXD
TXD
LEDA
PWDOWN
RXD
TXD
(LEDV
CC
)
RPM872
Photo Link Module
Rev.B 3/6
zTerminal description
Function
Pin No
1, 4 GND
GND
VIO
Supply voltage for I/O pins (PWDOWN,
RXD, TXD)
Power-down Control Terminal
CMOS logic level input
When input is H, it will stop the receiving
circuit, Pin-PD current and transmitting
LED operation.
H : POWERDOWN MODE
L : OPERATING MODE
2 VIO
PWDOWN
RXD
TXD
LEDA
3
5
6
7
8
V
CC
VIO
VIO
600k
LED
VIO
VIO
PWDOWN
300k
VCC
Supply voltage for Transceiver circuits.
For preventing from infection,
connect a capacitor between
V
CC(3pin) and GND(4pin).
Receiving Data Output Terminal
CMOS logic level output
When PWDOWN (5pin) = H, the RXD
output will be pulled up to
VIO at approximately 300kΩ.
Transmitting Data Input Terminal
H : LED (PWDOWN = L)
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
CC and VCC.
This can be connected to battery kinds
of unregulated voltage source by internal
constant current driver.
Terminal Circuit
P1-P3P4-P6P7-P7

RPM872-E4

Mfr. #:
Buy RPM872-E4
Manufacturer:
Description:
IC IRDA IR COMMUNICATION MODULE
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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