GP2W3120YP0F Datasheet, PDF (10/15 Pages) Sharp Electrionic Components – IrDA Compliant Transceiver Module 9.6 kb/s to 4 Mb/s (FIR) Low Profile Low Consumption Current

Fig.7 High level output voltage(VOH) vs Logic I/O levels(VIO)
(typ.)
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GP2W3120YP0F
3
2
1
0
1
2
3
4
Logic I/O levels VIO (V)
■Notes
(1) When the system (program) is designed, the Turn Around Time shall be secured by considering 500 μs or
more that is specified to IrDA.
Then, this Turn Around Time means the time when this device does not temporarily detect the signal light,
since the transmitted light form the transceiver reaches the detector side of the transceiver.
(2) As it is necessary 1 ms or more (at Ta =25 °C, no input signal) to return from shut-down mode to ready-
operation mode, please consider this point at the system (program) designing.
Also, please confirm thoroughly the operation in actual application.
(3) When there is much external disturbing light source is located near this transceiver and the detector face
resceiver much external disturbing light, there is case that the pulse other than signal output is generated
as noise on output terminal of this transceiver. Please consider the lay-out and structure to reduce disturbing
light on the detector face.
(4) In case that this sensor is adopted in IR communication system, please use it according to the signal method
which is specified by [Serial Infrared Physical Layer Link Specification Version 1.4] published by Infrared
Data Association. False operation may happen if the different signal method is used.
(5) In circuit designing, make allowance for the degradation of light emitting diode output that results from long
continuous operation. ( 50 % degradation/5 years)
Sheet No.: E3-A00802EN
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