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RPM972-H14 
Photo Link Module 
8/9
 
Notes
1) VLEDV
CC
 (1pin), V
CC
 (6pin) and VIO (7pin)
"
 
There is no problem even if it is supplied separately from each power supply such as a fix voltage power supply and a
battery power supply. (VIO < Vcc + 0.3V)
  But, use it in the recommendation power supply voltage range.
 
2) Caution in designing board lay-out
To get maximum potential from RPM972-H14, please keep in mind following instruction.
 
"
The line of RXD (4pin) should be connected at backside via through hole close to RPM972-H14 pin lead. Better not
  to be close to photo diode side (8pin side). 
襎his is to minimize feedback supplied to photo diode from RXD. 
"
The parts which generate noise such as DC / DC converter should be ones placed at more than a radius of 1.0cm
away from photo diode (8pin side). 
"
 
As for C1 between 6 - 8 pins, it should be ones placed close to RPM972-H14. 
 
3) Notes
"
 
Please be sure to set up the TXD (3pin) input to be L (under 0.6V) except transmitting data.
  (For < 90?sec. ON duty < 25%). 
"
 
Powerdown current might increase if exposed by strong light (ex. direct sunlight) at powerdown mode.
"
 
Please use by the signal format which is specified by IrDA Ver1.3 (Low Power).
  There might be on error if used by different signal format.
 
<Communication rate and pulse continuous time>
Signaling Rate
Modulation
Rate Tolerance
% of Rate
Pulse Duration
Minimum
Pulse Duration
Nominal
Pulse Duration
Maximum
9.6kbit/s
RZI
+/ 0.87
1.41祍
19.53祍
22.13祍
19.2kbit/s
RZI
+/ 0.87
1.41祍
9.77祍
11.07祍
38.4kbit/s
RZI
+/ 0.87
1.41祍
4.88祍
5.96祍
57.6kbit/s
RZI
+/ 0.87
1.41祍
3.26祍
4.34祍
115.2kbit/s
RZI
+/ 0.87
1.41祍
1.63祍
2.23祍
0.576Mbit/s
RZI
+/ 0.1
295.2ns
434.0ns
520.8ns
1.152Mbit/s
RZI
+/ 0.1
147.6ns
217.0ns
260.4ns
4.0Mbit/s
single pulse
double pulse
4PPM
4PPM
+/ 0.01
115.0ns
125.0ns
135.0ns
+/ 0.01
240.0ns
250.0ns
260.0ns
 
 
"
 
Please pay attention to the lens carefully.
  Dusts or scratch on the lens may effect the characteristics of product, please handle it with care.
 
4) Eye safe
 
"
 Eye safe is based on EN60825-1(IEC60825-1 amendment 2), Class1 Eye safe.
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