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Altera_Forum
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16 years ago

FPGA drive current effect on power draw in Cyclone IV

Howdy, With the Cyclone IV FPGA, we have run into some issues with noise on Vccio and Vccint pins while using the 24 mA default drive current. I found an application note (http://www.altera.co...
Altera_Forum's avatar
Altera_Forum
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16 years ago

Reduce the drive current on the pins to help reduce noise on VCCIO. Although you shouldn't be getting significant noise on VCCIO with proper bypass. Also consider phasing the I/O outputs if you are driving a lot of them at once to help reduce noise and ground bounce.

Jake