Spread Spectrum Clock (SSC) Input to Cypress Clock Device

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    Question: Can I give Spread Spectrum Clock (SSC) input to any Cypress Clock device?



    No, this is not true for Cypress clock devices which have on chip PLL. When SSC is given as input to Non-Zero Delay Buffer (NZDB) which does not have on chip PLL, spread in input clock will appear in output clock. But for devices which have PLL like Zero Delay Buffer (ZDB), need to have spread aware or spread compatible PLL to accept SSC input.

    Spread Aware ZDBs: CY23S02, CY23S05, CY23S08, CY23S09, CY29350/1/2, CY29774, CY29972/3/6