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IRM-3638

P1-P3P4-P6P7-P9
EVERLIGHT ELECTRONICS CO.,LTD.
Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 1 Page: 4 of 9
Device No
SZDMO-036-045 Prepared date 21-Jun-06 Prepared by Meijuan Zhang
IRM-36xx SERIES
Test Method：
：：
：
The specified electro-optical characteristics is satisfied under the following
Conditions at the controllable distance.
Measurement place
A place that is nothing of extreme light reflected in the room.
External light
Project the light of ordinary white fluorescent lamps which are not high
Frequency lamps and must be less then 10 Lux at the module surface.
(Ee
≦
10Lux)
Standard transmitter
A transmitter whose output is so adjusted as to
Vo=400mVp-p
and the output
Wave form shown in Fig.-1.According to the measurement method shown in
Fig.-2 the standard transmitter is specified.
However , the infrared photodiode to be used for the transmitter should be
λ
p=940nm,
∆λ
=50nm. Also, photodiode is used of PD438B(Vr=5V).
(Standard light / Light source temperature 2856
°
K).
Measuring system
According to the measuring system shown in Fig.-3
Block Diagram：
Modulated IR signal
Min 6 or 10 pulses
Carrier frequency f0
OUT IN
Vs
GND
Input CGA & filter Demodulator
Oscillator AGC/ATC & digital control
µC
EVERLIGHT ELECTRONICS CO.,LTD.
Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 1 Page: 5 of 9
Device No
SZDMO-036-045 Prepared date 21-Jun-06 Prepared by Meijuan Zhang
IRM-36xx SERIES
Application Circuit：
RC Filter should be connected closely between Vcc pin and GND pin.
Fig.-1 Transmitter Wave Form D.U.T output Pulse
Fig.-2 Measuring Method Fig.-3 Measuring System
Duty=0.5
EVERLIGHT ELECTRONICS CO.,LTD.
Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 1 Page: 6 of 9
Device No
SZDMO-036-045 Prepared date 21-Jun-06 Prepared by Meijuan Zhang
IRM-36xx SERIES
The Notice of Application: (IRM-36xx SERIES)
Transmission remote control signal consist of four parts: Encode Part, IR Transmitter Source, IRM
device, Decode Part
1. When IRM-36xx SERIES code select frequency, it need to well understand the center system
of encode part.
2. Strong or weak light of IR Transmitter can affect distance of transmission.
3. Minimum Burst Length T
burst
(number of pulses per burst) : 6 or 10 cycles
4. It needs to ensure the translation range of decode part if it is applied to the pulse-width range.
5. IRM-36xx SERIES can be applied to the high data codes, but against disturbance slightly
weak.
If the above items hardly assure of its application, it’ll cause NG(no good) message from the edge of
signal.
Typical Electro-Optical Characteristics Curves
Fig.-4 Relative Spectral Sensitivity vs.
Wavelength
Fig.-5 Relative Transmission Distance vs.
Direction
P1-P3P4-P6P7-P9

IRM-3638

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Infrared Receivers IR Receiver Module
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New from this manufacturer.
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