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Altera_Forum
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17 years ago

Transmit 2 bits of 1MHz (modulation)

Hello, Y have one signal of 2 bits and with one bandwidth about 1MHz and I need send this bits using one fiber optic (FO) cable. Transmit one signal over fiber optic is easy because I ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Hi KAZ, thanks for your answer.

For my design I have 2 binari TTL inputs (that correspond to 3 levels of voltage) and they can change with a frequency of 1MHz. I can modulate one signal using PWM to transmit the 3 levels?

For example:

- Frequency of the PWM = 25MHz

- First level: Duty cycle at 25%

- Second level: Duty cycle at 50%

- Third level: Duty cycle at 75%

The comunication is always digital. Is easy this modulation/demodulation using one low cost MAX II ? Do you recommend using VHDL or graphic language?

Thanks!