RPM872-H14 [ROHM]
IrDA infrared communication module; IrDA红外通信模块
| 型号： | RPM872-H14 |
| 厂家： | 
ROHM |
| 描述： | IrDA infrared communication module |
| 文件： | 总7页 (文件大小：84K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RPM872-H14
Photo Link Module
IrDA infrared communication module
RPM872-H14
RPM872-H14 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
VCC=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)
Parameter
Supply voltage
Symbol
Limits
7.0
Unit
V
V
CC
100
mW
˚C
Pd
Power dissipation
Topr
Tstg
−30 to +85
−30 to +100
Operating temperature
Storage temperature
˚C
zRecommended operating conditions (Ta=25°C)
Parameter
Supply voltage
Symbol
Min.
2.0
2.6
1.5
Typ.
3.0
3.0
3.0
Max.
3.6
Unit
V
VCC
VLEDA
VIO
5.5
V
V
CC
V
Rev.A
1/6
RPM872-H14
Photo Link Module
zBlock diagram and application circuit
GND
VIO
VIO
VCC
V
CC
GND
GND
C1
PWDOWN
POWER
DOWN
PWDOWN
RXD
RXD
TXD
TXD
LEDA
(LEDVCC
)
V
CC(3pin) and VLEDA(8pin) can be used on
either common power source or different one.
Rev.A
2/6
RPM872-H14
Photo Link Module
zTerminal description
Function
Pin No
Terminal
Circuit
GND
1, 4
GND
Pin1 and Pin4 must be connected to the
ground.
VIO
2
3
VIO
Supply voltage for I/O pins (PWDOWN,
RXD, TXD)
V
CC
Supply voltage for Transceiver circuits.
For preventing from infection,
connect a capacitor between
V
CC
V
CC(3pin) and GND(4pin).
Power-down Control Terminal
H : POWERDOWN MODE
L : OPERATING MODE
VIO
CMOS logic level input
5
PWDOWN
When input is H, it will stop the receiving
circuit, Pin-PD current and transmitting
LED operation.
VIO
VIO
PWDOWN
Receiving Data Output Terminal
CMOS logic level output
300k
6
When PWDOWN (5pin) = H, the RXD
output will be pulled up to
RXD
VIO at approximately 300kΩ.
VIO
Transmitting Data Input Terminal
H : LED (PWDOWN = L)
CMOS logic level input
7
TXD
Holding TXD = "H"status, LED will
be turn off approximately 48µs.
600k
LED ANODE Terminal
Other power source can be used
difference between LEDVCC and VCC
.
LED
8
LEDA
This can be connected to battery kinds
of unregulated voltage source by internal
constant current driver.
Connect to Ground.
−
Shield Case
Rev.A
3/6
RPM872-H14
Photo Link Module
zElectrical characteristics (Unless otherwise noted, VCC=3V, VLEDA=3V, VIO=3V, Ta=25°C)
Parameter
Consumption Current 1
Consumption Current 2
Transmission rate
Symbol
Min.
−
Typ.
75
Max.
99
Unit
µA
Conditions
I
I
CC
1
2
VPWDOWN=0V. At no input light
VPWDOWN=VIO. At no input light
CC
−
0.01
−
0.2
µA
2.4
115.2
kbps
2/3∗VIO
VIO=1.8 to 3.6 [V]
VIO=1.5 to 1.8 [V]
VPDH
VPDL
−
−
V
V
VIO
PWDOWN INPUT High Voltage
PWDOWN INPUT Low Voltage
1.2
1/3∗VIO
VIO−1.2
VIO=1.8 to 3.6 [V]
VIO=1.5 to 1.8 [V]
0
PWDOWN INPUT High Current
PWDOWN INPUT Low Current
<Transmitter>
−1.0
−1.0
0
0
1.0
1.0
µA
µA
PWDOWN=VIO [V]
PWDOWN=0 [V]
IPDH
IPDL
VIO=1.8 to 3.6 [V]
VIO=1.5 to 1.8 [V]
2/3∗VIO
TXD INPUT High Voltage
TXD INPUT Low Voltage
VTXH
VTXL
−
−
VIO
V
V
1.2
1/3∗VIO
VIO−1.2
10
VIO=1.8 to 3.6 [V]
VIO=1.5 to 1.8 [V]
0
2.5
−1.0
−
5
0
µA
µA
TXD INPUT High Current
TXD INPUT Low Current
LED ANODE Current
<Receiver>
ITXH
ITXL
TXD=VIO [V]
TXD=0 [V]
1.0
ILEDA
30.5
−
mA
−
−
VIO
0.4
−
VRXH
VRXL
tRR
VIO−0.4
IRXH=−200µA
IRXL=200µA
V
RXD OUTPUT High Voltage
RXD OUTPUT Low Voltage
RXD OUTPUT Rise Time
RXD OUTPUT Fall Time
RXD OUTPUT Pulse Width
Receiver Latency Time
0
−
V
35
35
2.3
100
ns
ns
µs
µs
CL
CL
CL
=15pF
−
tFR
−
=15pF
1.5
−
4.2
200
twRXD
tRT
=15pF, 2.4 to 115.2kbps
zOptical characteristics (Unless otherwise noted, VCC=3V, VLEDA=3V, VIO=3V, Ta=25°C)
Parameter
Peak wave length
Intensity 1
Symbol
λP
Min.
850
4.0
−
Typ.
870
10
Max.
900
26
Unit
nm
Conditions
IE1
mW / Sr
deg
−15˚ ≤ θ ≤ 15˚
L
θL / 2
18
30
Half-Angle
Optical pulse width
TWLED
Tr / Tf
1.42
−
1.63
2.02
µs
ns
%
TXD=1.63µs pulse input
10% to 90%
−
−
−
−
100
25
Rise time / Fall time
Optical over shoot
Edge jitter
−
−40
0.0068
15
40
ns
Tj
Ee
mW / cm2 −15˚ ≤ θ
≤ 15˚
L
Irradiance in angular
INPUT Half-Angular
Maximum Emitting Time
500
−
θD / 2
TLEDmax
−
deg
120
µs
10
48
TXD=VIO
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.
Rev.A
4/6
RPM872-H14
Photo Link Module
zTiming chart
(Emitting side)
TXD
(7pin)
less than 48 µs
(emitting)
more than 48 µs
(emitting)
(emitting)
Internal LED
(Light output)
approximately 48 µs
(Detecting side)
Light input
less than 2.3 µs
more than 2.3 µs
RXD
(6pin)
pull up to VIO at
approximately 300kΩ
approximately 2.3 µs
approximately 2.3 µs
PWDOWN
(5pin)
zRecommended values
Part symbol
C1
Recommended value
Notice
Bigger capacitance is recommended with much noise from power supply
1µF, tantalum or ceramic
Ex.) TCFGA1A105M8R (ROHM)
Rev.A
5/6
RPM872-H14
Photo Link Module
zNotes
1) VLEDA(8pin), VCC(3pin) and VIO(2pin)
•
Other power source can be used difference between VLEDA and VCC and VIO. (VIO < VCC +0.3V)
2) Caution in designing board lay-out
To get maximum potential from RPM872-H14, please keep in mind following instruction.
•
The line of RXD (6pin) should be connected at backside via through hole close to RPM872-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 3-4 pin should be placed close to RPM872-H14.
•
Better to be placed more than 1.0cm in radius from photo diode (pin1 side) and also away from the parts which
generates noise, such as DC / DC converter.
3) Others
•
Please be sure to set up the TXD (7pin) input to be “L” (under 0.3V) except transmitting data
(for < 90µs. On duty < 20%).
Powerdown current might increase if exposed by strong light (ex. direct sunlight) at powerdown mode.
•
•
Please use by the signal format which is specified by IrDA Ver1.2 (Low Power). There might be on error if used by
different signal format.
•
Dust or dirt on lens portion may affect the characteristics, so pay sufficient attention.
4) Eye Safe
•
IEC825-1 (EN60825-1) Class 1 Eye Safe.
zExternal dimensions (Unit : mm)
R1.0
R1.1
8.0
2.2
0.15±0.1
LED
PinPD
1.1
1.4
2.8
4.0
A
0.78
0.76
2.59
A Part Size (Shield Case underside size)
2.2
1
8
0.37±0.1
0.95
P0.95×7=6.65
0.6
0.48
NOTE
1.TOLERANCE : ±0.2mm
2.COPLANARITY : 0.1mmMAX
UNIT : mm
ETH648
Rev.A
6/6
Appendix
Notes
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.
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
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