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Altera_Forum's avatar
Altera_Forum
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15 years ago

Fast frequency generation/ modulation

Hi there

I am not really familiar with FPGA families and their spped grades etc

Is anyone here able to telll me what is the fastest clock signal and PWM signal I could output from a Altera FPGA or CPLD??

I am working on a project that I need to e generate a signal with a frequency that can vary from 0.1MHz to 50MHz and vary the duty cycle from 10% to 90%. Is there a device you could reccomend?

thanks

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  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    An I/O rate of 0.1MHz to 50MHz is pretty slow for FPGAs. Any device will do.

    I would recommend looking at the low-end devices. If you do not need much logic, then the MAX II devices are good (there are now MAX V devices too). There are also the low-end Cyclone series devices (Cyclone III, IV, or V).

    Cheers,

    Dave