RPM970-H14 [ROHM]
IrDA Infrared Communication Module; IrDA红外通信模块
| 型号： | RPM970-H14 |
| 厂家： | 
ROHM |
| 描述： | IrDA Infrared Communication Module |
| 文件： | 总8页 (文件大小：128K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RPM970-H14
Photo Link Module
IrDA Infrared Communication Module
RPM970-H14
RPM970-H14 is an infrared communication module for IrDA Ver. 1.3 (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) Infrared LED, PIN photo diode, LED driver and receiver frequency formation circuit built in.
Improvement of EMI noise protection by Shield Case.
2) Applied to SIR (9.6k to 115.2kbps), MIR (0.576,1.152Mbps) and FIR(4Mbps).
3) Surface mount type.
4) Power down function built in.
5) Adjustable communication distance by LED load resistance value.
zApplications
Cellular phone, PDA, DVC, Digital still camera, Printer, Handy terminal etc.
zAbsolute maximum ratings (Ta=25°C)
Parameter
Supply voltage
Symbol
Vcc/VLEDA /VIO
Vin(3,4,5pin)
Topr
Limits
6.5 ∗1
Units
V
Input voltage
−0.3 to VIO+0.3
−25 to 85
−30 to 100
400∗2
V
Operation temperature
Storage temperature
LED peak current
Power dissipation
°C
Tstg
°C
Ifp
mA
mW
Pd
300∗3
∗1) This applies to all pins basis ground pin (8pin).
∗2) LED Peak Current : < 90 µs, On duty < 25%
∗3) When glass-epoxy board (70x70x1.6mm) mounted. In case of operating environment is over 25°C, 4mW
would be reduced per each 1˚C stepping up.
zRecommended operating conditions
Parameter
Symbol
Min.
2.4
2.7
1.7
Typ.
3.0
3.0
3.0
Max.
3.6
Units
V
CC
LEDA
IO
V
V
V
Supply voltage
V
5.5
V
VCC
1/7
RPM970-H14
Photo Link Module
zBlock diagram and application circuit
R1
LEDA
LEDVCC
LEDC
TXD
TXD
RXD
RXD
PWDOWN/Mode
POWER
DOWN
/Mode
PWDOWN
/Mode
V
V
CC
IO
V
CC
C1
V
IO
GND
GND
V
CC(6pin) and LEDVCC(1pin) can be used on either common
power source or different one.
2/7
RPM970-H14
Photo Link Module
zTerminal description
Pin No
Terminal
Circuit
LED
Function
LED Anode Terminal
Other power source can be used difference between
LEDVCC and VCC
1
2
.
1
LEDA
LED current depends on LED load resistance value.
Include internal current limiter (max.400mA).
LED Cathode Terminal
2
3
LEDC
TXD
This terminal must be left open.
Transmitting Data Input Terminal
H:LED radiant (PWDOWN='L')
CMOS Logic Level Input.
Holding TXD="H"status, LED will be turn off
approximately 48 µs.
V
IO
600k
Receiving Data Output Terminal
V
IO
V
IO
When PWDOWN(5pin)='H', the RXD output will be pulled
up to VIO at approximately 300 kΩ.
PWDOWN
300k
4
RXD
Power-down Control and Mode SettingTerminal
H: POWERDOWN
V
IO
L : OPERATION
PWDOWN
/Mode
5
CMOS Logic Level Input.
When input is "H", it will stop the receiving circuit, Pin−PD
current and transmitting LED operation.
V
CC
Supply voltage for Transceiver circuits.
For preventing from infection, connect a capacitor between
GND(8pin).
6
7
V
V
CC
V
IO
Supply voltage for I / O pins
(PWDOWN,RXD,TXD).
IO
8
GND
GROUND
−
Shield Case
Connect to Ground.
3/7
RPM970-H14
Photo Link Module
zElectrical characteristics (Unless otherwise noted, VCC=3V, VLEDVCC=3V, VIO=3V, Ta=25°C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Consumption current 1
Consumption current 2
Transmission rate(SIR / MIR mode)
Transmission rate(FIR mode)
PWDOWN input high voltage
PWDOWN input low voltage
PWDOWN input high current
PWDOWN input low current
< Transmitter >
I
I
CC
1
2
400
−
800
1600
0.2
µA
µA
PWDOWN=OV, At no input light
PWDOWN=VIO, At no input light
CC
0.01
−
9.6
1152
−
kbps
Mbps
V
−
4
VPDH
VPDL
IPDH
IPDL
2/3∗VIO
0
−
VIO
V
IO=1.7 to 3.6 V
−
<
(VIO
VCC)
−
1/3∗VIO
1.0
V
PWDOWN=VIO
PWDOWN=0V
−1.0
−1.0
0
µA
0
1.0
µA
TXD input high voltage
TXD input low voltage
TXD input high current
TXD input low current
LED anode current 1
VTXH
VTXL
ITXH
2/3∗VIO
0
−
−
V
IO
V
V
IO=1.7 to 3.6 V
−
<
(VIO
VCC)
1/3∗VIO
10
V
2.5
5
µA
µA
mA
mA
TXD=VIO
TXD=0V
R1=5.6Ω
ITXL
−1.0
−
0
1.0
ILED1
ILED2
170
260
−
LED anode current 2
180
400
R1=5.6Ω, VLEDVCC=5.5V
< Receiver >
RXD output high voltage
RXD output low voltage
RXD output rise time
VRXH
VRXL
tRR
V
IO−0.4
−
V
IO
V
IRXH= −200µA
IRXL=200µA
0
−
0.4
−
V
−
20
ns
ns
ns
ns
ns
µs
CL
CL
CL
CL
CL
=15pF
RXD output fall time
tFR
−
20
−
=15pF
RXD output pulse width(SIR / MIR) twRXDS
228
85
195
−
380
125
250
100
532
165
290
200
=15pF, 9.6k to 1.152 Mbps
=15pF, 4 Mbps(125ns pulse)
=15pF, 4 Mbps(250ns pulse)
RXD output pulse width(FIR1)
RXD output pulse width(FIR2)
Receiver latency time
twRXDF1
twRXDF2
tRT
zOptical characteristics (Unless otherwise noted, VCC=3V, VLEDVCC=3V, VIO=3V, Ta=25°C)
Parameter
Symbol
Min.
850
Typ.
870
Max.
900
Unit
nm
Conditions
Peak wave length
λP
<
<
−
−15 deg θ L 15 deg
−
Intensity1
IE1
25
63
200
mW/Sr
R1=5.6Ω
Half−angle
θL / 2
−
−
18
−
−
40
25
25
256
135
20
−
deg
ns
%
Rise time / Fall time
Optical over shoot
Edge jitter
Tr / Tf
10% to 90%
−
−
Tj
−25
172
115
−
−
ns
ns
ns
Optical pulse width(MIR)
Optical pulse width(FIR)
Minimum irradiance in angular
TweM
TweF
Eemin
217
125
9
tTXD=217ns
tTXD=125ns
2
<
<
−
−15 deg θ L 15 deg
µW/cm
mW/cm
deg
−
2
<
−15 deg θ L 15 deg
−
<
Maximum irradiance in augular Eemax
500
15
16
−
−
Input half−angle
θD / 2
−
−
Maximum emitting time
TLEDmax
48
120
µs
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.
4/7
RPM970-H14
Photo Link Module
zTiming chart
Mode Setting (SIR / MIR / FIR)
With RPM970-H14 there is a need for mode switch according to communication rate. For the mode setting, there are
“PWDOWN/Mode” and “TXD”. Please see below diagram for the set up of mode.
(a) FIR Mode
(b) SIR / MIR Mode
PWDOWN
/Mode
PWDOWN
/Mode
>
>
>
>
ts 200ns ts 200ns
ts 200ns ts 200ns
=
=
=
=
TXD
TXD
tdmax=200µs
tdmax=200µs
FIR Mode
(4Mbps)
SIR / MIR Mode
(9.6k-1.152Mbps)
Mode
Mode
Fig. 1
zAttached components
Part symbol
C1
Recommended value
6.8µF, Ceramic or tantalum
Notice
Bigger capacitance is recommended with much noise from power supply
Ex.)TCFGA1A685M8R (ROHM)
5.6Ω 5%, 1/4W
(VLEDVCC=3.0V)
R1
More than 50cm distance, more than 10µW/cm^2 at detecting side. (vs ver1.1)
In case of using R1 with different condition from the above, formula is as follows:
LED resistance value : R1 [Ω], LED average consumption current : ILED[mA], Supply voltage : VLEDVCC[V] necessary d[cm] (Including LED's distribution
within 15 deg)
R1=T (VLEDVCC-1.45)/d2 −5 [Ω]
+
ILED=Duty+ (VLEDVCC−1.36)/(R1+4) [A]
Duty : LED duty at emitting, T=17000
At LED/Duty<180mA
∗
5/7
RPM970-H14
Photo Link Module
zNotes
1) VLEDVCC (1pin), VCC (6pin) and VIO (7pin)
•
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 RPM970-H14, please keep in mind following instruction.
•
The line of RXD (4pin) should be connected at backside via through hole close to RPM970-H14 pin lead. Better not
to be close to photo diode side (8pin side).
⇒This is to minimize feedback supplied to photo diode from RXD.
•
The parts which generate noise such as DC / DC converter should be placed at more than a radius of 1.0cm away
from photo diode (8pin side).
•
As for 1 between 6 - 8 pins, it should be placed close to RPM970-H14.
3) Notes
•
Please be sure to set up the TXD (3pin) input to be “L” (under 0.6V) except transmitting data.
(For < 90µ sec. ON duty < 25%).
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 Ver1.3 (Low Power) except 4 Mbps.
There might be on error if used by different signal format.
4) Eye safe
•
EN60825-1(IEC60825-1 amendment 2), Class1 Eye safe.
5) LEDVCC voltage derating and ambient temperature
The relation among LEDVCC peak voltage, LED load resistance (R1) and maximum ambient temperature (Tamax) is
shown below.
We recommend you to use within the range as indicated in below.
a) When LED on-duty 25%
7
Duty=25%
6
22Ω
15Ω
5
4.7Ω
5.6Ω
4
6.8Ω
8.2Ω
10Ω
3
2
1
0
−25
0
25
50
75
100
Ambient Temperature Ta (°C)
6/7
RPM970-H14
Photo Link Module
zExternal dimensions (Unit : mm)
R1.0
R1.1
8.0
2.2
0.15±0.1
0.76
LED
PinPD
1.1
1.4
2.8
4.0
A
0.78
2.59
A Part Size (Shield Case underside size)
2.2
1
8
0.37±0.1
0.95
P0.95×7=6.65
0.48
0.6
NOTE
1.TOLERANCE : ±0.2mm
2.COPLANARITY : 0.1mmMAX
UNIT : mm
ETH396
7/7
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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