Signal Timing
Example
The figure below shows the transmitted signal to represent a single press of button #15.
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| Data Bits Transmitted |
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1st Frame |
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| Device Address |
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| Code |
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| Inverse Code |
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Lead Code |
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| Byte 1 |
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| Byte 2 |
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| Byte 3 |
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| Byte 4 |
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| 0 | 0 |
| 0 |
| 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| 0 | 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 |
| 1 | 0 | 0 | 0 | 1 |
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| 0 |
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| 0 |
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| F |
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| F |
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| 0 |
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| E |
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| F |
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| 1 |
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9 ms 4.5 ms |
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| Hex Code Equivalent |
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General Signal Timing with Code Positions
Carrier Frequency = 38 KHz (50% duty cycle)
1st Frame |
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| Device Address |
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Lead Code |
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| Byte 1 |
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| Byte 2 |
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| Code |
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| Inverse Code | ||||||||||||||||
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| 0 | 0 |
| 0 | 0 | 0 |
| 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | D0 | D1 | D2 | D3 | D4 | D5 | D6 | D7 | D0 | D1 | D2 | D3 | D4 | D5 | D6 | D7 |
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| 0 |
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| 0 |
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| F |
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| F |
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9 ms 4.5 ms |
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Repeat Code
Carrier On
2.5 ms
Carrier Off
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| 9 ms | ||
Bit Description |
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Bit “0” |
| Bit “1” | |||
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| Carrier On | Carrier Off | ||
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Carrier On
0.56 ms
Carrier Off
0.56 ms
1.125 ms
Tf = 108 ms
0.56 ms
2.25 ms
Tf = 108 ms
Lead Code Bytes | Repeat Code | Repeat Code |
IR Remote Control Hex Codes and Signal Timing • Signal Timing | 2 |