RPM870-H14E2 Rohm Semiconductor, RPM870-H14E2 Datasheet - Page 5

• Manufacturer Part Number: RPM870-H14E2
• Description: Fiber Optic Transmitters, Receivers, Transceivers IRDA INFRARED COMMUNICATIONS
• Manufacturer: Rohm Semiconductor

Specifications of RPM870-H14E2

• Product: Transceiver
• Data Rate: 115.2 Kbps
• Wavelength: 870 nm
• Maximum Rise Time: 70 ns
• Maximum Fall Time: 30 ns
• Pulse Width Distortion: 2.3 us
• Operating Supply Voltage: 2.6 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 20 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Photo Link Module
1) LEDV
2) Caution in designing board lay-out
3) Others
4) Eye Safe
(Emitting side)
(Detecting side)
Timing chart
Notes
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To get maximum potential from RPM870-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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to be close to photo diode side (1pin).
generates noise, such as DC / DC converter.
(for < 90µsec. on duty < 20%).
different signal format.
handle it with care.
Other power source can be used difference between LEDV
The line of RXD (6pin) should be connected at backside via through hole close to RPM870-H14 pin lead. Better not
As for C1 between 3-4 pin should be placed close to RPM870-H14.
Better to be placed more than 1.0cm in radius from photo diode (pin1 side) and also away from the parts which
Please be sure to set up the TXD (7pin) input to be “L” (under 0.5V) 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 Ver1.2 (Low Power). There might be on error if used by
Please pay attention to the lens carefully. Dusts of scratch on the lens may effect the characteristics of product. Please
IEC825-1 (EN60825-1) Class 1 Eye Safe.
TXD
(7pin)
Internal LED
(Light output)
Light input
RXD
(6pin)
PWDOWN
(5pin)
CC
(8pin) and V
approximately 2.3 µsec
less than 48 µsec
CC
less than 2.3 µsec
(3pin)
(emitting)
approximately 2.3 µsec
more than 2.3 µsec
approximately 48 µsec
more than 48 µsec
(emitting)
CC
and V
CC
.
(emitting)
pull up to V
approximately 300kΩ
RPM870-H14
CC
at
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