ADP1055 External Synchronization with Spread Spectrum

Dear Sirs

I would like to use ADP1055 with external synchronization clock featured spread spectrum modulation.
For example, LTC6908-1 (Fcenter = 200-400 kHz, ±10% Frequency Spreading).

But I not sure that ADP1055 can support spread spectrum clock on SYNC pin.

Can someone confirm or disprove that, please?

-- Best Regards

Victor