RPM971-H14E3A Rohm Semiconductor, RPM971-H14E3A Datasheet - Page 8

• Manufacturer Part Number: RPM971-H14E3A
• Description: Fiber Optic Transmitters, Receivers, Transceivers IRDA IR COMM SIDE VIEW W/SHIELD
• Manufacturer: Rohm Semiconductor

Specifications of RPM971-H14E3A

• Product: Transceiver
• Data Rate: 4 Mbps
• Wavelength: 870 nm
• Maximum Rise Time: 20 ns
• Maximum Fall Time: 20 ns
• Pulse Width Distortion: 2.3 us
• Operating Supply Voltage: 2.4 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Idle Current, Typ @ 25° C: 1mA
• Link Range, Low Power: 20cm, 60cm
• Operating Temperature: -25°C ~ 85°C
• Orientation: Side View
• Shutdown: *
• Size: 8mm x 2.9mm x 2.2mm
• Standards: IrPHY 1.4
• Supply Voltage: 2.4 V ~ 3.6 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Photo Link Module
1) VLEDV
2) Caution in designing board lay-out
3) Notes
4) Eye safe
Notes
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To get maximum potential from RPM971-H14, please keep in mind following instruction.
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⇒This is to minimize feedback supplied to photo diode from RXD.
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Eye safe is based on EN60825-1(IEC60825-1 amendment 2), Class1 Eye safe.
But, use it in the recommendation power supply voltage range.
to be close to photo diode side (8pin side).
(For < 90µ sec. ON duty < 25%).
There might be on error if used by different signal format.
<Communication rate and pulse continuous time>
Dusts or scratch on the lens may effect the characteristics of product, please handle it with care.
There is no problem even if it is supplied separately from each power supply such as a fix voltage power supply and a
The line of RXD (4pin) should be connected at backside via through hole close to RPM971-H14 pin lead. Better not
The parts which generate noise such as DC / DC converter should be one’s placed at more than a radius of 1.0cm
As for C1 between 6 - 8 pins, it should be one’s placed close to RPM971-H14.
Please be sure to set up the TXD (3pin) input to be “L” (under 0.6V) except transmitting data.
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).
Please pay attention to the lens carefully.
battery power supply.
away from photo diode (8pin side).
2.4kbit/s
9.6kbit/s
19.2kbit/s
38.4kbit/s
57.6kbit/s
115.2kbit/s
0.576Mbit/s
1.152Mbit/s
4.0Mbit/s
Signaling Rate
CC
(1pin), V
single pulse
double pulse
CC
(6pin) and V
Modulation
4PPM
4PPM
RZI
RZI
RZI
RZI
RZI
RZI
RZI
RZI
IO
(7pin)
Rate Tolerance
% of Rate
+/− 0.87
+/− 0.87
+/− 0.87
+/− 0.87
+/− 0.87
+/− 0.87
+/− 0.01
+/− 0.01
+/− 0.1
+/− 0.1
Pulse Duration
Minimum
295.2ns
147.6ns
115.0ns
240.0ns
1.41µs
1.41µs
1.41µs
1.41µs
1.41µs
1.41µs
Pulse Duration
Nominal
78.13µs
19.53µs
434.0ns
217.0ns
125.0ns
250.0ns
9.77µs
4.88µs
3.26µs
1.63µs
Pulse Duration
Maximum
88.55µs
22.13µs
11.07µs
520.8ns
260.4ns
135.0ns
260.0ns
5.96µs
4.34µs
2.23µs
RPM971-H14
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