| IR Codes | |
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How to connect
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Connect your wired remote control to Remote Control port on the Product.
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Remote Control IR Code
Output waveform
single pulse, modulated with 37.917kHz signal at 455kHz
Tc
Carrier frequency
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| FCAR = 1 / Tc = fosc / 12 |
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| T1 |
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| Duty ratio = T1 / Tc = 1 / 3 |
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Configuration of frame
• 1st frame
Lead code
Low | High | Data code |
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Data code | ||||
custom code | custom code | |||
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C0 C1 C2 C3 C4 C5 C6 C7 C0 C1 C2 C3 C4 C5 C6 C7 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7
• Repeat frame
Repeat code
Tf
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Lead code
9 ms
▲ Repeat code
9 ms
4.5 ms
0.55ms
2.25 ms
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Bit description |
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• Bit "0" | • Bit "1" |
0.56ms
1.12ms
0.56 ms
2.24 ms
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Frame interval : Tf
• The waveform is transmitted as long as a key is depressed.
Tf
Tf
Tf = 108 ms @ 455 kHz
A28
