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Altera_Forum's avatar
Altera_Forum
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15 years ago

Cyclone EP1C20 slew rate

Where can I find the slew rate(rise time/fall time) of EP1C20F400c8 Looked in the cyclone family data sheet. could not find it. I want to reduce the slew rate from default to something slower.
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

The rise/fall times are not in the Cyclone datasheet. You could try measuring them on a (fast) oscilloscope, though.

You can reduce the slew rate by setting the "Slow Slew Rate' in the Assigment Editor. It really helps in reducing EMI emission.