40 Plasma TV
IR Codes
GConnect your wired remote control to the Remote Control port on the TV.
GOutput waveform
Single pulse, modulated with 37.917KHz signal at 455KHz
GConfiguration of frame
GRepeat code
GLead code
•1st frame
Low
custom code
Lead
code
High
custom code Data code Data code
TC
Tf
T1
C0
Carrier frequency
FCAR= 1/TC= fOSC/12
Duty ratio = T1/TC= 1/3
•Repeat frame
C1C2 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 code
9 ms 4.5 ms
0.55 ms
9 ms
2.25 ms
GBit description
GFrame interval : Tf
The waveform is transmitted as long as a key is depressed.
•Bit“0”
Tf Tf
Tf=108ms @455KHz
0.56 ms 0.56 ms
1.12 ms
•Bit“1”
2.24 ms
How to Connect
How to Connect