2 Transceivers PLL issue

Hi,

1) How to solve/arrange PLL Spacing?

ATX PLLs' VCO frequency offset must be 100 MHz apart. For further information about the PLL Spacing, you may refer to link below Section 3.1.1, https://www.intel.com/content/www/us/en/docs/programmable/683054/20-1/transmit-plls-spacing-guidelines-when.html

2) Can I use the same PLL for both transceivers?

It need depends on the transceiver type that you use. If you are using the XCVR, you can do the PLL sharing.

3) If yes, how should I connect the signals? should I use the same Reset Controller for both transceivers?

You need to aware some rules when you are doing the PLL sharing. You need to ensure that you are using the same frequency, same refclk and same side of bank.

You can use the same Reset Controller for both transceivers if you want to control the resets at the same time.

Best regards,

Zi Ying