Rainbow-electronics ATtiny28L Manual do Utilizador descarregar pdf (Página 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

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 74 75

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