Cross-coupled timing synchronization platform

A system comprising:

• a first set of transceivers configured to receive input data and output a plurality of reference clock signals;
• a second set of transceivers configured to receive a plurality of output clock signals and output a set of synchronized data;
• and
• a timing circuit comprising at least an analog phase lock loop (APLL), a plurality of digital phase lock loops (DPLLs) and a plurality of fractional output dividers (FODs), the timing circuit being configured to:
• receive the plurality of reference clock signals;
• use the plurality of reference clock signals, a feedback fractional frequency offset signal, and feedback of at least one of a plurality of output clock signals to generate at least one fractional frequency offset signal, wherein the feedback fractional frequency offset signal is variable;
• apply at least one operand on the at least one fractional frequency offset signal;
• sum results of the application of the at least one operand on the at least one fractional frequency offset signal to generate a plurality of signals that control frequencies of the plurality of output clock signals;
• and
• send the plurality of signals to the second set of transceivers.

A method for operating a timing circuit, the method comprising:

• receiving a plurality of reference clock signals;
• using the plurality of reference clock signals, a feedback fractional frequency offset signal, and feedback of at least one of the plurality of output clock signals to generate at least one fractional frequency offset signal, wherein the feedback fractional frequency offset signal is variable;
• applying at least one operand on the at least one fractional frequency offset signal;
• and
• determining a sum of results of the application of the at least one operand on the at least one fractional frequency offset signal to generate a plurality of signals that control frequencies of a plurality of output clock signals that are synchronized with the plurality of reference clock signals.