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Which LS1046A clocks cannot be spread spectrum?

Question asked by Sabine Schnabeltier on Jan 24, 2017
Latest reply on Jan 25, 2017 by Sabine Schnabeltier

From the datasheet, it appears that it is okay for the Core and Platform clocks to be derived from a 100 MHz spread spectrum clock. The same appears to be true for the SerDes clock if used for PCIe.

 

Is it okay to use a SSC to derive a SerDes clock for SGMII?

 

Is it okay to use a SSC to derive the DDR clock?

 

Is it okay to use a SSC to derive the USB PHY clock?

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