News | August 22, 2008

Semtech Expands ToPSync Platform With New IEEE1588v2 Slave Device

CAMARILLO, Calif.--(BUSINESS WIRE)--Semtech Corp. (Nasdaq: SMTC), a leading supplier of analog and mixed-signal semiconductors, today announced the expansion of its ToPSync(TM) product platform with the availability of the ACS9593, an IEEE1588v2 precision time protocol (PTP) slave device that is a cost-effective, high-precision time synchronization solution for deployment in wireless base stations.

The ACS9593 device provides time recovery and delivery to networking equipment in wireless base stations used in 3G, 4G, WiMAX and Long Term Evolution (LTE) networks. The highly precise device delivers time alignment performance better than ±2 µs and frequency alignment performance better than ±10 ppb when measured on a managed five-switch Gigabit Ethernet network under G.8261 test conditions. Previously this level of accuracy could only be achieved through the use of highly accurate and costly combinations of GPS modules and oscillators.

With the ACS9593, carriers can deploy wireless femtocells and pico base stations in large office buildings, apartment complexes and on campuses to improve coverage, and use an IP network to connect them cost-effectively to a central switch. Before ToPSync(TM) commercial availability, providing synchronization meant using a GPS-based solution, which required costly building retrofits to provide line of sight to the satellite and the use of an expensive oscillator for periods of GPS service outage.

"Our ToPSync platform takes the 1588v2 protocol and makes it a game changer in wireless backhaul because it enables brand new markets for wireless carriers," said Rich Lansdowne, Product Group Manager at Semtech. "The ACS9593 makes this especially true for smaller base stations that are now shaking up the industry."

Semtech's ToPSync product platform gives carriers a cost-effective way to adopt IEEE1588v2 synchronization solutions and move away from intricate GPS systems that have high installation costs and require the ability to access GPS satellites. The Semtech IEEE1588v2 system is much more ubiquitous and has no ongoing operating costs.

For a brief overview of our ToPSync technology, visit:

Key Features of the ACS9593

  • Supports multiple PTP Grandmasters, can be configured or automatic
  • Powerful network delay analysis delivers full time alignment over hostile networks
  • Integrated processor for PTP/adaptive packet delay filtering clock recovery algorithm
  • Dynamic adaptation to delay variations. Tolerant to network loading changes (ramps and steps), routing changes and temporary outages
  • Operational support - unicast and multicast operation
  • Configurable DiffServ codepoint for high priority packet routing
  • RoHS and WEEE Compliant to meet worldwide regulatory requirements


The ACS9593 product (order code: ACS9593 or ACS9593T for lead free version) is available immediately in production quantities. Semtech offers comprehensive design assistance, including field- and factory-based support. Data sheets, volume pricing, and delivery quotes, as well as evaluation kits and samples, are available by contacting

About Semtech

Semtech Corporation is a leading supplier of analog and mixed-signal semiconductors for high-end consumer, computing, communications and industrial equipment. Products are designed to benefit the engineering community as well as the global community. The company is dedicated to reducing the impact it, and its products, have on the environment. Internal green programs seek to reduce waste through material and manufacturing control, use of green technology and designing for resource reduction. Publicly traded since 1967, Semtech is listed on the NASDAQ Global Select Market under the symbol SMTC. For more information, visit

Semtech, the Semtech logo, and ToPSync are marks of Semtech Corporation.

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