Ircodes - LG 47LB1DA Owner's Manual

A P P E N D I X
115
IR CODES
Configuration
of frame
1st frame
Repeat
frame
Lead code
Repeat
code
Bit
description
Frame interval: Tf
The waveform is transmitted
as
long
as a
key is depressed.
C0C1C2C3C4C5C6C7C0C1C2C3C4C5C6C7D0D1D2D3D4D5D6D7D0D1D2D3D4D5D6D7
Lead code Low custom code High custom code Data code Data code
Repeat
code
Tf
4.5
ms
9ms
2.25
ms
9ms
0.55
ms
0.56
ms
1.12
ms
0.56
ms
2.24
ms
Tf Tf
Tf=108ms @455KHz
Bit "0"
Bit "1"
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
T1
Tc
Carrier frequency
FCAR
=
1/TC
=
fOSC/12
Duty
ratio
=
T1/TC
=
1/3
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