Microsemi Adds New Ultralow Jitter Network Synchronizers to its

Microsemi Adds New Ultralow Jitter Network Synchronizers to its IEEE 1588 Product Portfolio

Company Expands Market Opportunity by Providing Customers Cost-Effective Migration Path to IEEE 1588 Compliance

ALISO VIEJO, Calif., Feb. 4, 2016 — (PRNewswire) — Microsemi Corporation (Nasdaq: MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, today announced three new devices in its portfolio of IEEE 1588 products, which include two single-channel ultralow jitter network synchronizers, ZL30721 and ZL30722, as well as a dual-channel version, ZL30723.The new network synchronizers feature Microsemi's leading IEEE 1588 software and are footprint compatible with the company's recently released ZL30621, ZL30622 and ZL30623 Synchronous Ethernet (SyncE) devices, offering customers a simple and cost-effective migration path from G.8262 SyncE compliance to IEEE 1588 compliance.

Microsemi's ZL30721, ZL30722 and ZL30723 each offer a combined hardware and software platform including IEEE 1588-2008 Precision Time Protocol (PTP) stack, synchronization algorithm and Microsemi's system synchronizer clock generation hardware. They boast jitter performance of 0.25 pico seconds (ps) root mean square (rms) and integrated electrically erasable programmable read-only memory (EEPROM) for self-configuration at start-up. The single-channel ZL30722 device also features a compact 5x5 millimeter (mm) package. Combined, these features offer compelling solutions for space-constrained, high volume IEEE 1588 applications.

"Our new IEEE 1588 network synchronizers are our smallest and lowest jitter devices to date. They provide a simple, cost-effective solution that helps expand both Microsemi's customer base and the number of applications our products can support," said Maamoun Seido, vice president and business unit manager of Microsemi's timing products.

Microsemi's ZL30721, ZL30722 and ZL30723 are ideal for a wide range of applications, including small cell routers and switches, broadband access, carrier Ethernet equipment and wireless equipment such as base stations and backhaul equipment, as well as smart grids and synchrophasors. Market research firm Infonetics is forecasting unit shipments of service provider small cells to grow at a compound annual growth rate (CAGR) of 35 percent between 2015 and 2018.

Microsemi's protocol engine and time synchronization algorithm runs on a variety of host processor architectures and is combined with an accurate timestamping unit, such as a Microsemi 1588-capable PHY or switch, and one of the new system synchronizers to provide the complete IEEE 1588 implementation. The ZL30721 and ZL30722 have three input references and generate up to three differential, or six single-ended output clocks, while the ZL30723 has six input references and generates up to six differential or 12 single-ended output clocks.

Key features include:

Packet network frequency and phase synchronization
- Frequency accuracy for GSM, WCDMA-FDD, LTE-FDD base stations and small cells
- Frequency performance for ITU-T G.823 and G.824 synchronization interface, G.8261 PNT, PEC and CES interfaces
- Phase synchronization performance for WCDMA-TDD, TD-SCDMA, CDMA2000, LTE-TDD and LTE-A applications
- Client holdover and reference switching between multiple servers
- Support for new ITU-T packet clock, G.8263 PEC, G.8273.2 T-BC, T-TSC
IEEE 1588 protocol engine
- IEEE 1588-2008 Annex J.3 (delay request response) and Annex J.4 (peer-to-peer) default profiles
- ITU-T G.8265.1 PTP telecom profile for frequency synchronization
- ITU-T G.8275.1 PTP telecom profile for phase/time synchronization with full timing support from the network
- IEEE C37.238-2011 power profile requirements with grandmaster, boundary clock and slave only ordinary clock functionality
Low-bandwidth digital phase locked loop (DPLL) per channel
- Programmable bandwidth from 0.1Hz to 500Hz
- Hitless reference switching
- High-resolution holdover averaging
- Numerically controlled oscillator mode
Low-jitter fractional-N APLL and three outputs per channel

Product Availability
Microsemi's new ultralow jitter network synchronizers are available in volume production quantities now. For more information on the ZL30721, ZL30722 and ZL30723, visit http://www.microsemi.com/products/timing-and-synchronization/ieee-1588/zl30721, http://www.microsemi.com/products/timing-and-synchronization/ieee-1588/zl30722 and http://www.microsemi.com/products/timing-and-synchronization/ieee-1588/zl30723, respectively.

To learn more about IEEE 1588 technology, visit http://www.microsemi.com/design-support/ieee-1588-technology. For more information on Microsemi's IEEE 1588 offering, visit http://www.microsemi.com/products/timing-and-synchronization/ieee-1588. Customers can also contact Email Contact for additional details.

About Microsemi's Product Portfolio for Communications
Microsemi is a premier supplier of high value-add semiconductor, system and services for the enterprise, data center and telecom markets. Microsemi products enable customers to build secure, reliable and low power systems that can meet stringent requirements of next generation communication networks. Customers leverage Microsemi technologies to drive innovation in a range of applications including edge and core routers, Ethernet switches, optical transport network (OTN), wireless infrastructure including LTE-Advanced, small cells and Wi-Fi access points; access aggregation and broadband gateways including fiber/PON, G.fast and DOCSIS3.1.

Microsemi's comprehensive communications portfolio offers market-leading advancements in multiple product categories including high accuracy timing and synchronization systems, software, components and services; feature-rich Carrier Ethernet switches and PHY, power-efficient and multi-standard compliant Power-over-Ethernet (PoE) systems and components, G.hn, G.fast and xDSL line drivers; innovative voice and audio intelligence, lowest power FPGAs with highest security and single event upset (SEU) immune fabric, security portfolio of hardware and software products including state-of–the-art multi-layer encryption, sophisticated key management, secure authentication with anti-tamper and anti-cloning capabilities; 100 Gigabits optical drivers and the most integrated Wi-Fi front-end modules (FEM). For more information, visit http://www.microsemi.com/applications/communications.

About Microsemi
Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for communications, defense & security, aerospace and industrial markets. Products include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, setting the world's standard for time; voice processing devices; RF solutions; discrete components; enterprise storage and communication solutions, security technologies and scalable anti-tamper products; Ethernet solutions; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 4,800 employees globally. Learn more at www.microsemi.com.

Microsemi and the Microsemi logo are registered trademarks or service marks of Microsemi Corporation and/or its affiliates. Third-party trademarks and service marks mentioned herein are the property of their respective owners.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in this news release that are not entirely historical and factual in nature, including without limitation statements related to three new devices in its portfolio of IEEE 1588 products, which include two single-channel ultralow jitter network synchronizers, ZL30721 and ZL30722, as well as a dual-channel version, ZL30723, and its potential effects on future business, are forward-looking statements. These forward-looking statements are based on our current expectations and are inherently subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. The potential risks and uncertainties include, but are not limited to, such factors as rapidly changing technology and product obsolescence, potential cost increases, variations in customer order preferences, weakness or competitive pricing environment of the marketplace, uncertain demand for and acceptance of the company's products, adverse circumstances in any of our end markets, results of in-process or planned development or marketing and promotional campaigns, difficulties foreseeing future demand, potential non-realization of expected orders or non-realization of backlog, product returns, product liability, and other potential unexpected business and economic conditions or adverse changes in current or expected industry conditions, difficulties and costs of protecting patents and other proprietary rights, inventory obsolescence and difficulties regarding customer qualification of products. In addition to these factors and any other factors mentioned elsewhere in this news release, the reader should refer as well to the factors, uncertainties or risks identified in the company's most recent Form 10-K and all subsequent Form 10-Q reports filed by Microsemi with the SEC. Additional risk factors may be identified from time to time in Microsemi's future filings. The forward-looking statements included in this release speak only as of the date hereof, and Microsemi does not undertake any obligation to update these forward-looking statements to reflect subsequent events or circumstances.

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