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Altera_Forum
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15 years ago

How to activate the "VCO Bypass Mode" of the Stratix IV PLLs ?

In a Stratix IV GX design, I'd like to place the Left and Right PLLs in vco bypass mode. This mode is recommended in ALTERA documentation to avoid jitter amplification when you generate the tra...
Altera_Forum's avatar
Altera_Forum
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15 years ago

Fixed it (at last !...).

What a pity the solution is hiden in a "Configuration example" chapter of the device Handbook. It would be better placed in the "L/R PLL in VCO Bypass Mode" chapter

For complete solution, see Stx IV Handbook p2-77 that describes the restrictions and the tricky way to proceed