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Timing devices, UFTs aimed at high-speed SyncE systems

Posted: 27 Oct 2014 ?? ?Print Version ?Bookmark and Share

Keywords:Integrated Device Technology? timing device? SyncE? UFT? GPS?

Integrated Device Technology Inc. (IDT) has expanded its line-up with the release of synchronous Ethernet (SyncE) solutions, including synchronous equipment timing sources (SETS) devices and third-generation universal frequency translators (UFT). According to the company, the two families support ITU-T G.8262 SyncE compliance in single board or multi-board architectures with network interfaces operating at up to 100Gb/s.

The IDT offering consists of two SETS devices, the 82P33714 and 82P33731, and three UFT devices, the 8T49N285, 8T49N286 and 8T49N287. The SETS devices generate SyncE-compliant timing references for an entire system. The UFT devices are geared for line cards in multi-board systems to adapt SETS timing signals for local interfaces while preserving SyncE compliance. The two families have been tested together and are proven to provide SyncE-compliant clocks.

The SETS devices provide flexibility to accept network synchronisation references from virtually any source including 1pps signals from GPS receivers. The 82P33714 can directly time 1G PHYs; while the 82P33731 can directly time 10G PHYs.

IDT SETS, UFT devices

In line card applications the UFT devices claim to deliver reliably solid jitter performance to directly time 10G PHYs and interfaces up to 100G. They provide redundancy management, jitter attenuation and consistent phase noise performance at any loop bandwidth settings. For even greater flexibility, each output differential pair can independently be used as LVPECL, LVDS, HCSL, or two CMOS. The IDT technology allows highly flexible frequency plans, including any rate conversion to unrelated output frequencies, helping engineers simplify complex clock trees, IDT stated.

Flexibility and ease of programmability provide the SETS and UFT devices with the ability to be used and reused in many different clock trees while reducing engineering effort. The recently introduced Timing Commander tool enables a fast and easy reconfiguration of the devices.

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