LG M3701C-BA Owner's Manual (English) - Page 59
IR Codes
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UPC - 719192182523
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RS-232C IR Codes L L L How to connect Connect your wired remote control to Remote Control port on the Product. Remote Control IR Code Output waveform single pulse, modulated with 37.917KHz signal at 455KHz Tc Carrier frequency FCAR = 1/Tc = fosc/12 T1 Duty ratio = T1/Tc = 1/3 Configuration of frame • 1st frame Lead code Low custom code High custom code Data code Data code 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 Lead code 9ms Repeat code 4.5ms 0.55ms 9ms Bit description • Bit "0" 0.56ms 2.25ms • Bit "1" 0.56ms 1.12ms Frame interval : Tf • The waveform is transmitted as long as a key is depressed. Tf Tf 2.24ms L L L L Tf=108ms@455KHz A17
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IR Codes
RS-232C
A17
How to connect
Remote Control IR Code
Connect your wired remote control to Remote Control port on the Product.
Output waveform
single pulse, modulated with 37.917KHz signal at 455KHz
Carrier frequency
FCAR =
1/Tc = fosc/12
Duty ratio = T1/Tc = 1/3
Configuration of frame
•
1st frame
T1
Lead
code
Low
custom code
High
custom code
Data code
Data code
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
Tc
Tf
•
Repeat frame
Repeat code
Lead code
Repeat code
9ms
Bit description
•
Bit "0"
•
Bit "1"
2.25ms
9ms
0.55ms
0.56ms
1.12ms
0.56ms
2.24ms
Frame interval : Tf
•
The waveform is transmitted as long as a key is depressed.
Tf
Tf
Tf=108ms@455KHz
4.5ms
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