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48
EXTERNAL CONTROL DEVICE SETUP
IR OUT Using Guide
Suitable / Not Recommend remote-controller data format
Item
Suitable data format
Not recommend data format
IR Receiver specifications
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
CAUTION
If not use the remote-controller with data formats recommended, IR output signals will be suppressed automatically by IR
y
receiver.
In this case, LG does not guarantee IR working function.
y
To make sure of this matter, here are two methods as below.
y
- Use the remote-controller with suitable data formats.
- Use the IR dongle receiver of the set-top box.
Carrier frequency
Peak Wavelength
Minimum burst length
Data word length
Symbol
Conditions
T
Burst Wave = 600 µs
WH
Period = 1.2 ms
T
WL
Formats
NEC, RC5, Toshiba
Continuous data format (short burst/gap signal)
16 cycles (420 µs)
21 cycles (550 µs)
Max. 100 ms
Min
Typ
400
-
400
-
38 KHz
940 nm
30 ms
Max
Unit
µs
800
µs
800
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