GP2W1001YP0F【PDF 9/14 页】IRDA MODULE 115.2KBPS 10SMD

Fig.7 Peak Forward Current vs. Ambient Temperature

GP2W1001YP0F

Ambient temperature Ta ()

-25 0

100

-10

600

400

200

Pulse width 22 約, Duty ratio 1/4

Sheet No.: E3-A00101EN

?SPAN class="pst GP2W1001YP0F_2589539_0">Notes

(1) When the system (program) is designed, the Turn Around Time shall be secured by considering 500 約 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 1.5 ms or more (at Ta =25 癈, 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)

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