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10% of duty cycle at 50MHz would require a 2ns pulse, would a lower end device definitely support that?
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The smallest duty cycle would be a single clock period. Eg. lets say you use a clock frequency of 100MHz, then 10ns is your minimum pulse width.
If you need a 2ns pulse width, then you could use an LVDS transceiver operating at 500Mbps. You would need to check the LVDS specifications for the device. The Stratix II devices can definitely generate 2ns pulses.
However, 2ns seems like a really short pulse for a PWM operation.
What are you trying to do?
Cheers,
Dave
Honored Contributor
