0323G_3 2/22/06 8:58 PM Page 83
IR CODES
1.How to Connect
■Connect your wired remote control to the Remote Control port on the TV.
2.Remote Control IR Codes
■Output waveform
Single pulse, modulated with 37.917KHz signal at 455KHz
Tc
T1
Carrier frequency
FCAR = 1/TC = fOSC/12 Duty ratio = T1/TC = 1/3
■Configuration of frame
1st frame
Lead | Low | High |
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Data code | Data code | ||||
code | custom code | custom code | |||
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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
■Lead code
9 ms
■Repeat code
9 ms
4.5 ms
0.55 ms
2.25 ms
APPENDIX
■Bit description
Bit ”0” |
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| Bit ”1” | |
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0.56ms
1.12ms
■Frame interval: Tf
The waveform is transmitted as long as a key is depressed.
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| Tf |
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| Tf |
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0.56 ms
2.24 ms
Tf=108ms @455KHz
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