Silicon Laboratories has expanded its Any-Rate Precision Clock family with the Si5315, a jitter-attenuating clock multiplier that meets or exceeds the performance, integration, frequency and jitter requirements for 1G and 10G Synchronous Ethernet (SyncE).
The device is said to be the industry’s only SyncE clock multiplier IC to support 10G line encoding rates of 161,13 MHz in addition to SONET/SDH and Ethernet frequencies. The device requires no external phase-locked loop (PLL) components, simplifying line card design and frequency translation in carrier Ethernet switch routers (CESR), wireless backhaul, 3G/4G base stations, multiservice access platforms, passive optical networking, IP DSLAM and T1/E1 infrastructure.
The Si5315 provides low phase jitter at less than 0,6 ps rms, meeting the jitter requirements specified by ITU-T G.8262 and providing margin to Gigabit Ethernet (GbE) and 10 GbE PHY jitter requirements. The IC achieves this level of performance by leveraging Silicon Labs’ patented DSPLL technology to integrate all key components of a high-performance analog PLL on-chip, thereby providing excellent immunity to system noise sources. For ease of use, the Si5315 generates over 200 of the most popular frequency translations required in SyncE line card applications.
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