-- Complementary Portfolio Simplifies Adoption of IEEE 1588 Synchronization in 5G Wireless, Transport and Access Networks --

AUSTIN, Texas, Oct. 21, 2019 — (PRNewswire) — Silicon Labs (NASDAQ: SLAB) has acquired all IEEE 1588 precision time protocol (PTP) software and module assets from Qulsar, a leading provider of PTP grandmasters, gateways and other system-level synchronization-based solutions. The asset purchase includes all Qulsar modules (PTP master, gateway, boundary clocks and slave clocks) as well as IEEE 1588 servo and stack software, development tools and board support packages (BSPs) for a wide range of applications spanning small cells, optical transport, smart grid, automotive and 5G wireless infrastructure.

"Silicon Labs and Qulsar share a common vision of developing simplified solutions that ease the adoption of IEEE 1588 in a wide range of infrastructure applications," said James Wilson, General Manager of Timing Products at Silicon Labs. "The addition of Qulsar's software and modules to our 1588 network synchronizer portfolio uniquely positions us to address this fast-growing market opportunity with turnkey, carrier-grade solutions that simplify 1588 integration and accelerate time to market."

IEEE 1588 provides precise network synchronization for 5G infrastructure by distributing time-of-day across packet-based networks. Adoption of 1588 solutions helps eliminate cost, reliability and line-of-sight issues related to GPS time synchronization and enables new 5G services that provide higher bandwidth connectivity while minimizing interference between cell sites.

"The combination of Qulsar's 1588 hardware-software solutions and Silicon Labs' physical layer timing products will enable Silicon Labs to accelerate product innovation and deliver highly integrated, easy-to-use precision timing solutions for a broad range of applications," said Rajen Datta, President and CEO of Qulsar. "Qulsar remains committed to the IEEE 1588 and precise time synchronization market. We look forward to partnering with Silicon Labs as we pivot our business model to focus on advanced system-level time synchronization and real-time sensor fusion solutions for emerging mobile infrastructure, automotive and IoT markets."

Silicon Labs is a leading provider of timing solutions for infrastructure applications, offering a broad portfolio of crystal oscillators and voltage-controlled crystal oscillators (XO/VCXOs), clock generators, clock buffers, jitter attenuators and network synchronizers. The addition of Qulsar software to this portfolio enables Silicon Labs to address cost-sensitive, software-only PTP applications with standards-compliant solutions. Qulsar modules make it easy to add IEEE 1588 to designs by tightly integrating PTP software and hardware in turnkey timing solutions.

For more information, visit silabs.com/1588.

About Qulsar
Qulsar enables new applications through precisely synchronized time and is a provider of system solutions for the mobile network infrastructure and for real time sensor fusion applications. Qulsar offers industry-leading system solutions and specialized design services that unlock new capabilities for mobile networks, the Internet of things (IoT) and automotive industries. qulsar.com

Connect with Qulsar
Public & Investor Relations Contact: James Werner +1-408-715-1098 x805, jwerner@qulsar.com
Follow Qulsar at qulsar.com, on LinkedIn at linkedin.com/company/qulsar and on Twitter at twitter.com/Qulsar.

Silicon Labs
Silicon Labs (NASDAQ: SLAB) is a leading provider of silicon, software and solutions for a smarter, more connected world. Our award-winning technologies are shaping the future of the Internet of Things, Internet infrastructure, industrial automation, consumer and automotive markets. Our world-class engineering team creates products focused on performance, energy savings, connectivity and simplicity. silabs.com

Connect with Silicon Labs
Public Relations Contact: Dale Weisman +1-512-532-5871, dale.weisman@silabs.com
Investor Relations Contact: Jalene Hoover +1-512-428-1610, jalene.hoover@silabs.com
Follow Silicon Labs at news.silabs.com, at blog.silabs.com, on Twitter at twitter.com/siliconlabs, on LinkedIn at linkedin.com/company/siliconlabs and on Facebook at facebook.com/siliconlabs.

Cautionary Language
This press release contains forward-looking statements based on Silicon Labs' current expectations. The words "believe," "estimate," "expect," "intend," "anticipate," "plan," "project," "will," "expanding," "growing," and similar phrases as they relate to Silicon Labs or Qulsar are intended to identify such forward-looking statements. These forward-looking statements reflect the current views and assumptions of Silicon Labs and are subject to various risks and uncertainties that could cause actual results to differ materially from expectations. Among the factors that could cause actual results to differ materially from those in the forward-looking statements are the following: risks related to the successful completion of the development and implementation of Qulsar's software and module technology; risks associated with the development of 1588 software and modules and the Company's limited operating history with 1588 software and modules; risks that the acquisition may not yield the expected benefits due to the failure to properly integrate the acquired assets; risks that the acquired hardware and software under development may fail to achieve market acceptance; risks of disputes regarding the acquired intellectual property; risks associated with the competitive and cyclical nature of the semiconductor industry and other factors that are detailed in Silicon Labs' filings with the SEC. Silicon Labs disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Note to editors: Silicon Labs, Silicon Laboratories, the "S" symbol, the Silicon Laboratories logo and the Silicon Labs logo are trademarks of Silicon Laboratories Inc. All other product names noted herein may be trademarks of their respective holders.

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