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DAC38J84 / modulation signals

Toshiyuki
Mastermind 7075 points

Hi,

I would like to create three substantive modulation signals mentioned below.

1.Center frequency=844MHz, Bandwidth=56MHz

2.Center frequency=24MHz or 32MHz, Bandwidth=56MHz

3.Center frequency=24MHz or 32MHz, Bandwidth=56MHz

Could you advise me whether it is possible?

Best Regards,

Kato

  • 0
    TI__Genius 17470 points

    Hi Kato,

    I'll need some clarification here. Do you want to output all three signals from the same DAC at the same time or just one at a time?

    Are signals 2 and 3 supposed to be the same or is that a typo?

    We can certainly output all the signals you've specified. For a signal centered at 24 MHz, it wouldn't make sense to have a bandwidth of 56 MHz, because the lower edge of the band will be below zero. Even for a complex transmit architecture that signal choice seems strange. At 844 MHz, we would need to know the kind of performance expected since that will be the limiting factor.

    Regards,
    Matt Guibord