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Honored Contributor
Honored ContributorCyclone III PLL loses lock at >75C
I am using PLL reconfiguration. When the FPGA is powered up the PLL is loaded with different M, N and C values for the frequency I want to generate. The PLL will lock below 75C but once it gets t...
Altera_ForumHonored Contributor
Honored Contributor75C measured using thermocouple on the part.
Input clk is oscillator quality is good, voltage regulator is OK, switching noise is hard to eliminate, I have reduced outputs to minimum current. Those were my thoughts too, thanks for the replies.
