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Altera_Forum
Honored Contributor
16 years agoCylone II FPGA Clock input
In my design ,the FPGA uses single-end clock input, the clock is 40MHz signal ,3.3 Vpp and 6.6Vpp , the Voltage is -1.55~+1.55V and -3.3~+3.3V, but the FPGA I/O Voltage :-0.8V~4.1V. My ...
Altera_Forum
Honored Contributor
16 years agoYou need an external driver between the interface and the FPGA so that you generate clock from the FPGA to driver an than to the interface.