Si5348

Si5348 Rev D Data Sheet Network Synchronizer for SyncE/ 1588 PTP Telecom Boundary (T-BC) and Slave (T-SC) Clocks The Si5348 combines the industry’s smallest footprint and lowest power network synchronizer clock with unmatched frequency synthesis flexibility and ultra-low jitter. The Si5348 is ideally suited for wireless backhaul, IP radio, small and macro cell wireless communications systems, and data center switches requiring both traditional and packet based network synchronization. The three independent DSPLLs™ are individually configurable as a SyncE PLL, IEEE 1588 DCO or a general-purpose PLL for processor/FPGA clocking. The Si5348 can also be used in legacy SETS systems needing Stratum 3/3E compliance. The optional digitally controlled oscillator (DCO) mode provides precise timing adjustment to 1 ppt for 1588 (PTP) clock steering applications. The unique design of the Si5348 allows the TCXO/ OCXO reference input to determine the device’s frequency accuracy and stability. The Si5348 is programmable via a serial interface with in-circuit programmable non-volatile memory so it always powers up into a known configuration. Programming the Si5348 is easy with ClockBuilder Pro™ software. Factory pre-programmed devices are also available. Applications: Synchronous Ethernet (SyncE) ITU-T G.8262 EEC Option 1 & 2 Telecom Boundary Clock (T-BC) as defined by ITU-T G.8273.2 IEEE 1588 (PTP) slave clock synchronization Stratum 3/3E, G.812, G.813 network synchronization KEY FE...