RPM882-H12E4 Rohm Semiconductor, RPM882-H12E4 Datasheet - Page 5

• Manufacturer Part Number: RPM882-H12E4
• Description: Infrared Transceivers IRDA INFRARED COMMUNICATIONS
• Manufacturer: Rohm Semiconductor

Specifications of RPM882-H12E4

• Wavelength: 890 nm
• Continual Data Transmission: 115.2 Kbit/s
• Radiant Intensity: 13 mW/sr
• Half Intensity Angle Degrees: 44 deg
• Pulse Width: 2.3 us, 1.63 us
• Maximum Rise Time: 35 ns, 120 ns
• Maximum Fall Time: 35 ns, 120 ns
• Led Supply Voltage: 2.6 V to 5.5 V
• Maximum Forward Current: 52 mA
• Operating Voltage: 2.4 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Package / Case: SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Photo Link Module
(Emitting side)
Notes) Please be sure to set up the TX-RC (4pin) and the TXD (7pin) input to be ''L'' (under 0.3V)
LED Operation Mode Table
Interface operating timing
PWDOWN
(1) When TXD output for IrDA and TXD output for remote controller is 1 line.
Emitting Mode
LED Emitting
PWDOWN
(5pin)
∗
TX-RC
If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs.
(4pin)
(7pin)
(5pin)
TXD
L
L
L
H
H
H
except transmitting data (for
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''.
of TX-RC (4pin) and TXD (7pin) in the table above is supposed to be the pulse input.
TX-RC
(4pin)
L
L
L
L
1
8
GND
TXD
V
PWDOWN
RXD
LEDA
V
TX-RC
<
CC
IO
90µs. ON Duty
Min 1µs
IrDA
(7pin)
TXD
L
L
L
L
V
V
LEDV
IO
CC
50%).
Min 1µs
CC
IrDA / RC
Controller
Emitting Mode
RC
LED
OFF
IrDA
OFF
RC
RC
RC
PWDOWN
L
L
H
H
Operation Condition
IrDA Receiver
Input
OFF
OFF
OFF
ON
ON
ON
Min 1µs
TXD
RC
L
L
LED Mode
Min 1µs
OFF
IrDA
OFF
RC
IrDA
Condition
RPM882-H12
Recriver circuit
OFF
OFF
ON
ON
( "L" )
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