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Altera_Forum's avatar
Altera_Forum
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17 years ago

Using GCLK by a Quartz Crystal

Hi all, Can I use a quartz crystal to drive the GCLK pin of FPGAs? I mean just like the microcontroller XTAL pin which needs a quartz crystal with 2 capacitors? Thanks in advance.
Altera_Forum's avatar
Altera_Forum
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17 years ago

No, you need a crystal oscillator or an unbuffered CMOS inverter to build an oscillator.