HMS38112 Datasheet, PDF (64/73 Pages) List of Unclassifed Manufacturers – 4-BIT SINGLE CHIP MICROCOMPUTERS

Chapter 5. Application
Output waveform of uPD6121G
A single pulse, modulated with 37.917KHz signal at 3.64MHz
Tc
Carrier frequency
f_CAR = 1/Tc = f_OSC/96
T1
Duty ratio = T1/Tc = 1/3
- Configuration of Flame
1st flame
Lead code Custom code
Custom code
Data code
Data code
9ms
4.5ms 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 D5 D7
- Repeat code
0.56ms
9ms
- Bit Description
Bit Ì0Ì
0.56ms
1.125ms
2.25ms
Bit Ì1Ì
0.56ms
2.25ms
- Flame Interval : Tf
The transmitted waveform as long as a key is depressed
Tf=108mS
Tf=108mS
5-5