RPM882-H14E2A [ROHM]
Interface Circuit,;
| 型号： | RPM882-H14E2A |
| 厂家： | 
ROHM |
| 描述： | Interface Circuit, |
| 文件： | 总10页 (文件大小：106K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RPM882-H14
Photo Link Module
IrDA Infrared Communication Module
RPM882-H14
RPM882-H14 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.
zFeatures
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) Low voltage operation as 1.5V of interface terminals to controller (TXD, RXD, PWDOWN, TX-RC).
6) Infrared remote control transmission driver built-in.
zApplications
Mobile phone, PDA, DVC, Digital Still Camera, Printer, Handy Terminal etc.
zAbsolute maximum ratings (Ta=25°C)
Parameter
Supply voltage
Symbol
Limits
Unit
V
∗1
Vmax
7.0
−0.3 to VIO+0.3
V
Input voltage
Vin (4, 5, 6, 7pin)
Operation temperature
Storage temperature
LED peak current
Power dissipation
Topr
Tstg
°C
°C
mA
mW
−25 to +85
−30 to +100
∗2
I
FP
300
∗3
Pd
300
∗1 This applies to all pins basis ground pins (1pin)
∗2 LED Peak Current 90µs, On duty 50%
<
∗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.
zRecommended operating conditions (Ta=25°C)
Parameter
Supply voltage
Symbol
Min.
2.4
1.5
2.6
Typ.
3.0
3.0
3.0
Max.
3.6
Unit
V
V
CC
IO
V
V
CC
V
Interface supply voltage
LED supply voltage
VLEDVCC
5.5
V
1/9
RPM882-H14
Photo Link Module
zBlock diagram and application circuit
GND
C1
GND
+
VIO
V
IO
VCC
V
CC
TX-RC
TX-RC
PWDOWN / LED Mode
POWER
DOWN
PWDOWN / LED Mode
RXD
TXD
RXD
TXD
LEDA
sw
(LEDVCC
)
R1
V
CC (3pin) ,VIO (2pin) and LEDVCC (8pin)
can be used on either common power source
or different one
2/9
RPM882-H14
Photo Link Module
zTerminal description
Circuit
Function
Terminal
Pin No
1
GND
Ground
Supply voltage for I/O pins.
(TX-RC, PWDOWN, RXD, TXD)
2
3
VIO
Power Supply Terminal
For preventing from infection, connect
a capacitor between VCC (3pin) and
GND (1pin).
VCC
V
IO
RC Transmitting Data Input Terminal
H : LED Emitting
4
TX-RC
CMOS Logic Level Input
Holding TX-RC='H' status, LED will be
turn off approximately 48µs.
200k
Power-down Control and LED
Intensity switching Terminal
H : POWERDOWN (RC transmitting Mode)
L : OPERATION
V
IO
PWDOWN /
LED Mode
5
CMOS Logic Level Input
When input is 'H', it will stop the receiving
circuit and Pin-PD current.
V
IO
Receiving Data Output Terminal
CMOS Logic Level Output
PWDOWN
V
IO
When PWDOWN (5pin)= 'H', the RXD
output will be pulled up to VIO at
approximately 300kΩ.
6
300k
RXD
Transmitting Data Input Terminal
IrDA TXD input at PWDOWN=L
V
IO
(Remote control transmitting input at PWDOWN=H).
7
TXD
H : LED Emitting
CMOS Logic Level Input
Holding TXD="H" status, LED will be
turn off approximately 48µs.
200k
LED ANODE Terminal
Other power source can be used
LED
difference between LEDVCC and VCC
LED current depends on LED load
resistance value at RC mode.
.
8
LEDA
−
Shield Case
Connect to Ground.
3/9
RPM882-H14
Photo Link Module
zElectrical characteristics (Unless otherwise noted, VCC= VIO=3.0V, VLEDVCC=3.0V, Ta=25°C)
Parameter
Consumption current1
Consumption current2
Data rate
Symbol
Min.
−
Typ.
80
Max.
104
Unit
µA
Conditions
I
I
CC
1
2
PWDOWN=0V At no input light
PWDOWN=VIO At no input light
CC
−
0.01
−
0.2
µA
2.4
115.2
kbps
2/3∗VIO
V
V
V
V
IO=1.8 to 3.6V
IO=1.5 to 1.8V
IO=1.8 to 3.6V
IO=1.5 to 1.8V
PWDOWN input high voltage
PWDOWN input low voltage
VPDH
VPDL
−
−
V
IO
V
V
1.2
1/3∗VIO
0
V
IO−1.2
PWDOWN input high current
PWDOWN input low current
<Transmitter>
IPDH
IPDL
−1.0
−1.0
0
0
1.0
µA
µA
PWDOWN=VIO
PWDOWN=0V
1.0
2/3∗VIO
V
V
V
V
IO=1.8 to 3.6V
IO=1.5 to 1.8V
IO=1.8 to 3.6V
IO=1.5 to 1.8V
TXD/TX-RC input high voltage
TXD/TX-RC input low voltage
VTXH
VTXL
−
−
V
IO
V
V
1.2
1/3∗VIO
0
V
IO−1.2
TXD/TX-RC input high current
TXD/TX-RC input low current
LED anode current (IrDA Mode)
LED anode current (RC Mode)
ITXH
ITXL
7.5
−1.0
28
15
0
30
µA
µA
TXD=VIO or TX-RC=VIO
1.0
52
TXD=0V or TX-RC=0V
ILEDA1
ILEDA2
40
200
mA
mA
TXD=VIO, R1=4.7Ω, PWDOWN=0V
TX-RC=VIO, R1=4.7Ω, PWDOWN=VIO
150
245
<Receiver>
RXD output high voltage
VRXH
VRXL
tRR
V
CC−0.4
−
−
V
IO
V
IRXH=−200µA
IRXL=200µA
RXD output low voltage
RXD output rise Time
RXD output fall Time
RXD output pulse width
Receiver latency time
0
−
0.4
−
V
35
35
2.3
100
ns
ns
µs
µs
CL
CL
CL
=15pF
tFR
−
−
=15pF
twRXD
tRT
1.5
−
4.2
200
=15pF, 2.4 to 115.2kbps
zOptical characteristics (Unless otherwise noted, VCC= VIO=3.0V, VLEDVCC=3.0V, Ta=25°C)
Parameter
Symbol
Min.
880
850
Typ.
890
−
Max.
892
900
Unit
nm
nm
nm
Conditions
ILED=50mA, Duty20%
Peak wave length1 (IrDA Mode)
λP1
ILED=50mA, Duty20%, −20 to 60°C
ILED=200mA, Duty20%
Peak wave length2 (RC Mode)
Intensity1 (IrDA Mode)
Intensity2 (RC Mode)
Half-angle
λP2
IE1
880
4
890
13
65
22
1.63
10
60
−
920
28
−15°
−15°
θ
θ
L
15°
15°
R
1
=4.7Ω
=4.7Ω
mW/sr
mW/sr
deg
µs
L
R1
IE2
30
15
1.42
9.5
−
130
−
θL/2
Optical pulse width1 (IrDA Mode)
Optical pulse width2 (RC Mode)
Rise time / Fall time
TWLED1
TWLED2
Tr/Tf
2.02
10.5
120
25
TXD=1.63µs pulse input
TX-RC=10µs pulse input
10% to 90%
R
1
=4.7Ω
µs
R1=4.7Ω
ns
Optical over shoot
−
%
Edge jitter
Tj
−40
−
−
40
ns
µW/cm2
mW/cm2
deg
Minimum Irradiance in angular
Maximum Irradiance in angular
Input half-angle
Eemin
Eemax
3.6
−
6.8
−
−15°
−15°
θ
θ
L
L
+15°
+15°
500
θD/2
15
−
−
Maximum emitting time
TLEDmax
20.5
48
120
µs
TXD=0
V
IO or TX-RC=0
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.
4/9
RPM882-H14
Photo Link Module
zLED Operation Mode Table
PWDOWN
(5pin)
TX-RC
(4pin)
TXD
(7pin)
LED
Emitting Mode
IrDA Receiver
Operation Condition
L
L
L
L
OFF
IrDA
RC
ON
ON
L
L
L
L
ON
H
H
H
L
L
OFF
RC
OFF
OFF
OFF
L
RC
Notes) Please be sure to set up the TX-RC (4pin) and the TXD (7pin) input to be ''L'' (under 0.3V)
except transmitting data (for 90µs. ON Duty 50%).
<
of TX-RC (4pin) and TXD (7pin) in the table above is supposed to be the pulse input.
When either TX-RC (4pin) input TXD (7pin) 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 (4pin) and TXD (7pin) are ''L''.
zInterface operating timing
(Emitting side)
(1) When TXD output for IrDA and TXD output for remote controller is 1 line.
GND
1
V
IO
V
V
IO
VCC
CC
Input
PWDOWN
Condition
TX-RC
PWDOWN
RXD
TXD
L
LED Mode
OFF
Recriver circuit
L
ON
ON
L
IrDA
IrDA / RC
Controller
H
H
L
OFF
OFF
OFF
RC
TXD
LEDA
LEDVCC
8
( "L" )
TX-RC
(4pin)
Min 1µs
Min 1µs
Min 1µs
Min 1µs
TXD
(7pin)
PWDOWN
(5pin)
LED Emitting
Emitting Mode
IrDA
RC
RC
IrDA
∗If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.
5/9
RPM882-H14
Photo Link Module
(2) When TXD output for IrDA and TXD output for controller are different lines.
GND
1
V
IO
V
V
IO
V
CC
RC Transmitting
CC
Controller
(BU787X etc)
TX-RC
PWDOWN
RXD
IrDA / RC
Controller
TXD
LEDA
LEDVCC
8
(2-a) RC transmitting mode at IrDA receiver active condition.
Input
Condition
PWDOWN
TX-RC
TXD
L
LED Mode
Recriver circuit
L
L
L
H
OFF
IrDA
RC
ON
ON
L
L
L
L
ON
OFF
OFF
L
TX-RC
(4pin)
Min 1µs
Min 1µs
TXD
(7pin)
PWDOWN
(5pin)
LED Emitting
Emitting Mode
RC
IrDA
IrDA
RC
∗If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.
6/9
RPM882-H14
Photo Link Module
(2-b) RC transmit mode at IrDA receiver power down condition.
Input
Condition
PWDOWN
TX-RC
TXD
L
LED Mode
Recriver circuit
L
OFF
IrDA
RC
ON
ON
L
L
L
H
H
L
L
OFF
OFF
L
OFF
Min 1µs
Min 1µs
TX-RC
(4pin)
Min 1µs
Min 1µs
TXD
(7pin)
PWDOWN
(5pin)
LED Emitting
Emitting Mode
IrDA
RC
RC
IrDA
∗If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.
(Receiving side)
Light input
Min 200µs
PWDOWN RXD
(5pin)
RXD
(6pin)
Pull up to VIO at
approximately 300kΩ
∗RXD output width is fixed approximately 2.3µs.
Note RXD output become stable after 200µs since PWDOWN is changed from H to L.
RXD output could be unstable at H to L within 200µs.
7/9
RPM882-H14
Photo Link Module
zAttached components
Recommended values
Part symbol
Recommended value
Notice
1µF, tantalum or ceramic
C1
Bigger capacitance is recommended with much noise from power supply
At LED Emitting Duty=20%
Ex.) TCFGA1A105M8R (ROHM)
4.7Ω 5%, 1/8W
(VLEDVCC=3V)
R1
[LED current set-up method for Remote control mode]
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],
minimum necessary of irradiant intensity le1 [mW / sr]
(Including LED’s distribution within ±15deg)
R1=166 × (VLEDVCC−1.28) / le1−5.0
ILED=Duty × (VLEDVCC−1.28) / (R1+3.5)
Duty : LED duty at emitting
∗ Please set up to be ILED / Duty < 250[mA] (Duty ≤ 50%)
∗At IrDA Mode, LED current is constantly approximately 40mA.
(Reference) In case of using R1, typical intensity (le1typ) and maximum intensity (le1max) on
axis are described as below.
le1typ=300 × (VLEDVCC−1.28) / (R1+3.5)
le1max=600 × (VLEDVCC−1.28) / (R1+3.5)
zNotes
1) LEDVCC (8pin), VCC (3pin) and VIO (2pin)
•
Other power source can be used difference between LEDVCC and VCC and VIO
.
(VIO < VCC + 0.3V)
2) Caution in designing board lay-out
To get maximum potential from RPM882-H14, please keep in mind following instruction.
•
The line of RXD (6pin) should be connected at backside via through hole close to RPM882-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 1-3 pin should be placed close to RPM882-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) Notes
•
Please be sure to set up the TX-RC (4pin) and the TXD (7pin) input to be “L” (under 0.3V) except transmitting data
(for < 90µs, ON duty ≤ 50%).
Power down current might increase if exposed by strong light (ex. direct sunlight) at powerdown mode.
•
•
Please use by the signal format at IrDA operating mode which is specified by IrDA Ver1.2 (2.4k to 115.2kbps). There
might be on error if used by different signal format.
•
Please pay attention to the lens carefully.
Dusts of scratch on the lens may effect the characteristics of product. Please handle it with care.
8/9
RPM882-H14
Photo Link Module
4) Eye safe
•
IEC60825-1 (IEC60825-1 amendment2), Class 1 Eye Safe.
5) LED current derating and amdient temperature
The relation between LED peak current and maximum ambient temperature is shown below.
We recommend you to use within the range as indicated in below.
When glass-epoxy board (70×70×1.6mm) mounted.
300
Duty:10%
250
Duty:50%
200
Duty:40%
Duty:30%
150
Duty:20%
100
50
0
−20
0
20
40
60
80
100
AMBIENT TEMPERATURE : Ta (°C)
zExternal dimensions (Unit : mm)
RSLP8-H14
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
0.6
0.48
NOTE
1.TOLERANCE : ±0.2mm
2.COPLANARITY : 0.1mmMAX
UNIT : mm
ETH648
9/9
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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