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IR Specification
Peak Wavelength
Format
Carrier Frequency
Duty
- IR transmission method
(ⅰ). When a key is pressed one time, code is transmitted at least one time.
(ⅱ). While a key is kept pressing, the key code is transmitted repeatedly.
(ⅲ). When more than one key are pressed at one time, codes are not transmitted.
(ⅳ-1). If another key is pressed while a key is kept pressing, transmission of code is stopped at this time.
(ⅳ-2). After then, if one of the keys is released, key code of the key which is kept pressing is
transmitted.
(ⅴ). While a key is kept pressing, the key code is transmitted every 106.667ms.
When the second key (different from the first key) is pressed after the first key is released,
The second key code is transmitted after an interval of 150ms or more.
(ⅵ). When the same chatterings are found 3 times, it is considered as one key press.
- IR pattern
<Start Pattern>
6t
10t
- IR pattern 2 <Period when the key is pressed continuously>
- IR pattern 3 <Single key pressing which second key code is different from first key code>
106ms or more
RECOMMENDED : Frame width tolerance ±1%
TYP 940nm
RC6 format: In addition to specification of "RC6 mode 0",
followings should also be satisfied.
36kHz ±0.36kHz
33%
< Data "1" >
2t
1t 1t
106.667ms
< Data "0" >
1t 1t
2t
10
CONFIDENTIAL
< Toggle>
1t 1t
2t
2t
1t = 444.444us ±1%
the
2t
4t
・・・
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