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Communication Parameters
• Baud rate : 9600 bps (UART)
• Data length : 8 bits
• Parity : None
IR OUT Using Guide
Suitable / Not Recommend remote-controller data format
Item
Suitable data format
Not recommend data format
IR Receiver specifications
Minimum burst length
Minimum gap time is required of
Minimum gap time in the data stream is needed of
Parameter
High Level Out Pulse Width
Low Level Out Pulse Width
• If not use the remote-controller with data formats recommended, IR output signals will be
suppressed automatically by IR receiver.
• In this case, LG does not guarantee IR working function.
• To make sure of this matter, here are two methods as below.
- Use the remote-controller with suitable data formats.
- Use the IR dongle receiver of the set-top box.
44
Carrier frequency
Peak Wavelength
Data word length
Symbol
Twh
Twl
• Stop bit : 1 bit
• Communication code : ASCII code
• Use a crossed (reverse) cable.
Formats
NEC, RC5, Toshiba
Continuous data format (short burst/gap signal)
Conditions
Burst Wave = 600 µs
Period = 1.2 ms
37.9 KHz
940 nm
Min. 300 us
Min. 350 us
Max. 100 ms
Min. 50 ms
Min
Typ
Max
400
-
800
µs
400
-
800
µs
Unit
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