Rainbow Electronics ATtiny28L - Manual (Page 32)

32
ATtiny28L/V
1062E–10/01
Figure 26. Modulation with ONTIM = 1, MCONF = 011
Note: Clock frequency: 3.64 MHz; modulation frequency: 455 kHz; duty-cycle: 25%
Figure 27. Modulation with ONTIM = 3, MCONF = 001
Note: Clock frequency: 3.64 MHz; modulation frequency: 455 kHz; duty-cycle: 50%
Table 15. Some Common Modulator Configurations
Crystal/Resonator
Frequency Carrier
Frequency % Error in
Frequency
Duty-cycle
ONTIM
Value MCONF
Value
455 kHz 38 kHz 0.2 25% 2 011
455 kHz 38 kHz 0.2 33% 3 010
455 kHz 38 kHz 0.2 50% 5 001
455 kHz 38 kHz 0.2 67% 3 100
455 kHz 38 kHz 0.2 75% 2 101
1 MHz 38 kHz 1.2 50% 12 001
1.8432 MHz 38 kHz 1.1 25% 11 011
1.8432 MHz 38 kHz 1.1 33% 15 010
1.8432 MHz 38 kHz 1.1 50% 23 001
2 MHz 38 kHz 1.2 25% 12 011
2 MHz 38 kHz 1.2 50% 25 001
2.4576 MHz 38 kHz 1.1 50% 31 001
3.2768 MHz 38 kHz 2.0 25% 21 011
4 MHz 38 kHz 1.2 25% 25 011
455 kHz 455 kHz 0.0 approx. 50% X 111
1 MHz 455 kHz 9.9 50% 0 001
1.82 MHz 455 kHz 0.0 25% 0 011
1.82 MHz 455 kHz 0.0 50% 1 001
1.8432 MHz 455 kHz 1.3 25% 0 011
1.8432 MHz 455 kHz 1.3 50% 1 001
2 MHz 455 kHz 9.9 25% 0 011
2 MHz 455 kHz 9.9 50% 1 001
CLK
PA2
CLK
PA2