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PDF RPM971-H14 Data sheet ( Hoja de datos )
| Número de pieza | RPM971-H14 | |
| Descripción | IrDA Infrared Communication Module | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Photo Link Module
RPM971-H14
IrDA Infrared Communication Module
RPM971-H14
RPM971-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.
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 built in.
5) Adjustable communication distance by LED load resistance value.
zApplications
Cellular phone, PDA, DVC, Digital still camera, Printer, Handy terminal etc.
zAbsolute maximum ratings (Ta=25°C)
Parameter
Supply voltage
Symbol
Vcc / VLEDA / VIO
Limits
6.5 ∗1
Units
V
Input voltage
Vin(3,4,5pin)
−0.3 to VIO+0.3
V
Operation temperature
Topr
−25 to 85
°C
Storage temperature
Tstg
−30 to 100
°C
LED peak current
Ifp
400∗2
mA
Power dissipation
Pd
300∗3
mW
∗1) This applies to all pins basis ground pin (8pin).
∗2) LED Peak Current : < 90 µs, On duty < 25%
∗3) When glass-epoxy board (70x70x1.6mm) mounted. In case of operating environment is over 25°C, 4mW
would be reduced per each 1˚C stepping up.
zRecommended operating conditions
Parameter
Symbol Min. Typ. Max. Units
Supply voltage
VCC
VLEDA
VIO
2.4 3.0 3.6
2.7 3.0 5.5
1.7 3.0 VCC
V
V
V
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Photo Link Module
RPM971-H14
(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
less than 2.3µs
more than 2.3µs
approximately 2.3µs
300kΩ pull up
2 MIR mode (output example)
Light input
RXD
PWDOWN
434ns
434ns
217ns
217ns
300kΩ pull up
3 FIR mode (output example)
Light input
RXD
PWDOWN
125ns
125ns
250ns
250ns
300kΩ pull up
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| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet RPM971-H14.PDF ] | |
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