RPM971-H14E3A Rohm Semiconductor, RPM971-H14E3A Datasheet - Page 5

• 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
(b) Detecting
When it is received an optical signal, a signal outputs from RXD terminal at the following timing.
It is outputted in the pulse width fixed at the time of SIR mode (9.6k to 115.2kbps).
It is outputted in the pulse width which is the same as the input signal at the time of MIR mode (0.576M, 1.152Mbps)
and FIR mode (4Mbps).
But, as for the pulse width of the input signal, it is based on IrDA Physical Layer Specification.
1 SIR mode (output example)
Light input
RXD
PWDOWN
2 MIR mode (output example)
Light input
RXD
PWDOWN
3 FIR mode (output example)
Light input
RXD
PWDOWN
less than 2.3µs
434ns
434ns
125ns
125ns
approximately 2.3µs
more than 2.3µs
217ns
250ns
217ns
250ns
300kΩ pull up
300kΩ pull up
300kΩ pull up
RPM971-H14
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