ROHM RPM972-H14 Technical data
RPM972-H14
Photo Link Module
IrDA Infrared Communication Module
RPM972-H14
RPM972-H14 is an infrared communication module for IrDA Ver . 1.4 (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.
Also it provides the capability of IR remote control transmission for universal remote control applications.
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 (0.576M, 1.152Mbps) and FIR(4Mbps).
3) Surface mount type.
4) Power down function bui lt in.
5) Adjustable communication distance by LED load resistance value.
6) Infrared remote control transmission driver built-in.
zApplications
Cellular phone, PDA, DVC, Digital still camera, Printer, Handy terminal etc.
zAbsolute maximum ratings (Ta=25°C)
Parameter Symbol Limits Unit
Supply voltage Vcc
Input voltage
Operation temperature
Storage temperature
∗1) This applies to all pins basis ground pin (8pin).
/
V
LEDA
/
Vin(3,4,5pin)
Topr
Tstg
V
zRecommended operating conditions
Parameter Symbol Min. Typ. Max. Unit
CC
V
Supply voltage
V
LEDA
V
IO
IO
−0.3 to V
∗1
6.5
IO
+0.3
−25 to 85
−30 to 100
3.0 V2.4 3.6
3.0 V2.7 5.5
3.0 V1.7 V
V
V
°C
°C
CC
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Photo Link Module
zT ermina l description
Terminal Circuit FunctionPin No
1 LEDA
RPM972-H14
1
LED
2
LED Anode Terminal
LED drive power supply.
Other power source can be used difference between
CC
and VCC.
LEDV
2 LEDC
3
TXD
RXD
4
PWDOWN
5
/Mode
V
CC
6
V
IO
7
8 GND
Shield Case
−
LED Cathode Terminal
IO
V
Transmitting Data Input Terminal
H:LED radiant (PWDOWN='L')
CMOS Logic Level Input.
Holding TXD="H"status, LED will be turn off
600k
V
300k
IO
V
PWDOWN
IO
V
IO
approximately 48 µs.
Receiving Data Output Terminal
When PWDOWN(5pin)='H', the RXD output will be pulled
up to V
IO
at approximately 300 kΩ.
Power-down Control and Mode SettingTerminal
H: POWERDOWN
L : OPERATION
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.
V
IO
Supply voltage for I / O pins
(PWDOWN,RXD,TXD).
GROUND
Connect to Ground.
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Photo Link Module
zElectrical characteristics (Unless otherwise noted, V
Parameter Symbol Min. Typ. Max. Unit Conditions
Consumption current 1(SIR / MIR mode)
Consumption current 2(FIR mode)
Consumption current 3(at PWDOWN) 0.01
ICC1
I
CC2
I
CC3
Transmission rate
PWDOWN input high voltage
PWDOWN input low voltage
PWDOWN input high current
PWDOWN input low current
VPDH
VPDL
IPDH
IPDL
< Transmitter >
TXD input high voltage
TXD input low voltage
TXD input high current
TXD input low current
LED anode current
VTXH
VTXL
ITXH
ITXL
ILED1
< Receiver >
RXD output high voltage
RXD output low voltage
RXD output rise time
RXD output fall time
RXD output pulse width(SIR)
VRXH
VRXL
tRR
tFR
twRXDS
RXD output pulse width(MIR1) twRXDM1 200 434 ns800
RXD output pulse width(MIR2) twRXDM2 100 217 ns500
twRXDF1
RXD output pulse width(FIR2)
Receiver latency time
twRXDF2
tRT
zOptical characteristics (Unless otherwise noted, V
Parameter Symbol Min. Typ. Max. Unit Conditions
Peak wave length
Intensity
Half−angle
Rise time / Fall time
λP
IE
θL / 2
Tr / Tf
880
Optical over shoot
Edge jitter
Optical pulse width(MIR)
Optical pulse width(FIR)
Minimum irradiance in angular 1
Minimum irradiance in angular 2
Maximum irradiance in angular
Input half−angle
Maximum emitting time
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.
Tj
TweM 172 217 256
TweF 115 125 135
Eemin1
Eemin2
Eemax
θD / 2
TLEDmax
−25
500
±15
CC=3V , VL EDV
400
400
800
1000
−µA
0.0096
2/3∗V
0
−1.0
−1.0
2/3∗V
0
2.5
−1.0
180
V
IO
−0.4
0
−
−
1.0
−
−
IO
−
1/3∗V
0
0
−
IO
−
1/3∗V
5
0
250
−
−
20
20
2.3
125RXD output pulse width(FIR1)
195 250 290
100
−
CC=3V , VLEDV
890 nm
10025
−
−
−
−
900
−
−
−
−
−
−
−
−
−±15
40
25
25
8
20
−
−−
16
48
120
=3V , VIO=3V, Ta=25°C)
CC
1600
1600
0.2
µA PWDOWN=0V, At no input light
µA
PWDOWN=0V, At no input light
PWDOWN=V
Mbps4
V
1.0
1.0
V
10
1.0
300
V
0.4
−
−
4.0
16585
200
CC
V
IO
IO
IO
IO
V
µA
µA
V
V
µA
µA
VIO=1.7 to 3.6 V
(V
PWDOWN=V
PWDOWN=0V
VIO=1.7 to 3.6 V
(VIO VCC)
TXD=V
TXD=0V
mA
V
IO
IRXH= −200µA
V
IRXL=200µA
ns
C
L=15pF
ns
C
L=15pF
µs
C
L=15pF, 9.6k to 115.2 kbps, duty19%
C
L=15pF, 0.576 Mbps, duty25%
L=15pF, 1.152 Mbps, duty25%
C
ns
L=15pF, 4 Mbps(125ns pulse)
C
ns
C
L=15pF, 4 Mbps(250ns pulse)
µs
=3V , VIO=3V, Ta=25°C)
−15 deg θ L 15 deg
/
sr
mW
deg
ns
10% to 90%
%
ns
ns
tTXD=217ns
ns
tTXD=125ns
2
µW / cm
µW
mW
−15 deg θ L 15 deg, 115.2kbps
2
−15 deg θ L 15 deg, 115.2kbps
/
cm
2
−15 deg θ L 15 deg
/
cm
deg
TXD=V
µs
RPM972-H14
IO
, At no input light
<
IO
VCC)
−
IO
<
−
IO
<−<
−
<−<
<−<
<−<
IO
−
−
−
<
−
<
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