Timing

The infrastructure needed to deliver cost effective, reliable, and secure timing throughout cellular networks needs proper architecture, design, and management. Tighter time accuracy demands for 5G networking equipment requires reliable and robust timing architectures that guarantee network performance.

The Elite X Super-TCXO from SiTime provides stable timing from 1 MHz to 60 MHz for edge computing, vehicles, and cellular base stations.

Microchip’s ZL30735 integrates eight DPLLs, five low-output jitter synthesizers, and an IEEE 1588-2008 protocol stack. The splitting of radio access network functions creates an Open RAN that promises greater innovation and features in 5G networks. Splitting the traditional baseband unit into radio units (RU), distribution units (DU) and centralized units (CU) brings timing issues not…

The 8V19N850 radio synchronizer and 8V19N880/8V19N882 jitter attenuators enhance a radio unit’s timing capabilities.

The 5G rollout continues to gain momentum and with it comes timing issues. As timing and transport technologies evolve and advance, they offer enhancements and alternatives to 5G timing architectures for fronthaul applications. The Virtual Primary Reference Time Clock (vPRTC) offers some advantages over traditional architectures.

The GN2255 clock-data recovery chip from Semtech cleans signals in 50 Gbps PAM4 data streams and integrates an optical laser driver.

The T1 Telco Accelerator Card from Xilinx turns a standard server into a processor capable of handling 5G data streams.

Radio-access networks are changing from a single unit into a distributed system, which impacts how networks keep time. Precision Time Protocol will distribute timing information, keeping the units synchronized in time and phase.