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Synchronization Management Unit
8A34004 Datasheet
Overview
The 8A34004 Synchronization Management Unit (SMU) provides tools to manage timing references, clock sources, and timing paths for IEEE 1588 and Synchronous Ethernet (SyncE) based clocks. The PLL channels can act independently as frequency synthesizers, jitter attenuators, Digitally Controlled Oscillators (DCO), or Digital Phase Lock Loops (DPLL).
Optional clock recovery filter/servo software is available under license from Renesas for use with the 8A34004. The filter/servo software is designed to suppress the affects of Packet Delay Variation (PDV) on packet based timing signals – it can be used with protocol stacks for IEEE 1588 or other packet-based timing protocols.