Timing devices for smart grid and industrial applications

A new range of timing devices, optimised to meet the performance, functionality and cost targets of smart grid and industrial automation applications, has been launched by IDT.

The low jitter 8V89316 and 8V89317 are designed to improve the accuracy and reliability of IEEE 1588 time transport and offer important flexibility with an integrated Ethernet digital PLL and digitally controlled oscillator in a single chip. The devices can be used to synchronise switches and routers via the Ethernet physical layer to improve the reliability and timing accuracy of IEEE 1588 based transparent clocks, boundary clocks and ordinary clocks. The 8V89316 generates clocks suitable for QSGMII (Quad Serial Gigabit Media Independent Interface) and 1GbE interfaces, while the ultra low jitter 8V89317 is suitable for 10GbE interfaces and adds the ability to lock to 1PPS GPS clocks. Both devices include DCOs for increased flexibility, allowing them to lock to an incoming Ethernet clock or synthesise their own IEEE 1588-based clocks that other devices in the system can use as a frequency reference.