Single-chip IEEE1588 network timing platform
ACS9522T is the latest addition to the ToPSync platform that integrates a revolutionary new synchronisation system on a chip (SoC). It provides a complete single-chip hardware and software synchronisation solution for IP-based wireline and wireless applications, with a special emphasis on the requirements of the emerging 4G LTE and small cell market.
The ACS9522T integrates a CPU, memory and six phase-lock loops (PLLs) needed to support IEEE 1588 packet-based synchronisation as well as frequency synchronisation via synchronous Ethernet or SONET/SDH. This closely coupled architecture delivers optimum time alignment performance by offering advanced features such as synchronous Ethernet / IEEE 1588 hybrid mode operation and network asymmetry correction.
It also supports different system synchronisation architectures without loss of flexibility. The multi-PLL architecture allows seamless integration of multiple local and network timing sources for enhanced system availability.
The device features a new GUI for rapid system configuration and prototyping, enabling an almost push-button process to convert the configuration into production system software. This is designed to significantly reduce costly reconfiguration and testing cycles and speed up time to market.
“The sync landscape is evolving rapidly, particularly in the wireless backhaul space” said David Spencer, ToPSync Marketing Manager. “We are now seeing synchronisation required everywhere, driven by the rollout of 4G LTE small-cells, along with end applications pushing the synchronisation accuracy requirements to previously unachievable levels. The new generation of ToPSync system software is designed to support these emerging requirements, particularly the collaborative use of IEEE1588 with more-traditional GPS, which enables a more robust and fault-tolerant 4G LTE backhaul network. And the ACS9522T provides this on the most highly integrated platform available, reducing the sync function to a single device. By using the ToPSync solution, our customers free themselves from worrying about the sync system design details and can instead concentrate on their areas of expertise, reducing time and cost to market,” Spencer said.
ACS9522T ToPSync combines;
· a complete single-chip sync solution of packet and physical layer timing
· full support for IEEE1588-2008 master, slave and boundary clock operation
· optimum IEEE1588 performance through the use of Semtech’s clock recovery techniques – better than 300 nsec phase alignment with ITU-T G.8261 10-switch test network
· synchronous Ethernet / IEEE1588 hybrid mode to improve performance to sub-100 nsec
· dual physical-layer PLLs and dual packet-timing PLLs to support multiple clock sources
· dual Packet Timing PLLs for multiple PTP flows
· dual internal timebases with very flexible frequency and phase build-out features
· full compliance with ITU-T G.8265 “telecom profile”
ACS9522T costs $35.00 (10,000).
Semtech, www.semtech.com/info
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