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Fan-Out Buffers support clock rates up to 750 MHz.

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December 11, 2012 - Available in 28 models, ZL402 Series Clock Distribution Differential Fan-out Buffers offer multiple fan-out ratios and support2 types of outputs: low voltage positive emitter coupled logic and low voltage differential signaling. Internal and external terminations for inputs eliminate need for external peripheral components. In addition, buffers combine low additive jitter with optimizedpower supply noise rejection performance, preserving signal integrity.

Microsemi Broadens Communications Timing Portfolio with Family of Buffers

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Microsemi Corporation
2381 Morse Ave.
Irvine, CA, 92614

Press release date: December 5, 2012

New Solutions Support Industry's Lowest Additive Jitter Combined with Best Power Supply Noise Rejection Performance

ALISO VIEJO, Calif. -- Microsemi Corporation (Nasdaq: MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, today expanded its communications timing portfolio with its first family of clock distribution differential fan-out buffers. The 28-part family of buffers supports clock rates of up to 750 megahertz (MHz); two types of outputs, low voltage positive emitter coupled logic (LVPECL) and low voltage differential signaling (LVDS); and multiple fan-out ratios. Internal and external terminations for inputs eliminate the need for external peripheral components. In addition, the ultra-low additive output jitter leaves the majority of the jitter budget to the high speed transceivers. The combination of these features results in lower bill-of-material (BOM) costs.

The new clock buffers devices are synergistic with Microsemi's broad timing portfolio and, when used together, provide customers improved board performance and complete timing solutions.

"Broadening our current timing and synchronization offering with our new buffer family allows us to offer customers a complementary building block for clock generation and synthesis products," said Maamoun Seido, vice president and business unit manager of Microsemi's timing products. "Communications is a key area of focus for Microsemi. With our investments in this area, including the acquisition of Maxim's timing, synthesis and synchronization business earlier this year, we now have the roadmaps and resources in place to capitalize on growing opportunities in this market segment."

About Microsemi's New Buffer Family
Microsemi's high-performance buffers deliver the industry's lowest additive jitter combined with best power supply noise rejection performance. This preserves signal integrity by adding ultra-low jitter and filtering noise from power supplies, resulting in better performance while simplifying engineering board design efforts.In addition, the flexible I/O structure and internal on chip input terminations eliminate the need for external components, which reduces BOM costs. Microsemi's new buffer family includes:

LVPECL Output Solutions:
Input Termination 1:2 Fan-out QFN-16 3x3 mm 1:4 Fan-out QFN-16 3x3 mm 1:6 Fan-out QFN-32 5x5 mm 1:8 Fan-out QFN-32 5x5 mm 2:6 Fan-out QFN-32 5x5 mm 2:8 Fan-out QFN-32 5x5 mm
External P/N ZL40200 P/N ZL40202 P/N ZL40204 P/N ZL40206 P/N ZL40208 P/N ZL40210 P/N ZL40224
Internal P/N ZL40201 P/N ZL40203 P/N ZL40205 P/N ZL40207 P/N ZL40209 P/N ZL40211 P/N ZL40225

LVDS Output Solutions:
Input Termination 1:2 Fan-out QFN-16 3x3 mm 1:4 Fan-out QFN-16 3x3 mm 1:6 Fan-out QFN-32 5x5 mm 1:8 Fan-out QFN-32 5x5 mm 2:6 Fan-out QFN-32 5x5 mm 2:8 Fan-out QFN-32 5x5 mm
External P/N ZL40212 P/N ZL40214 P/N ZL40216 P/N ZL40218 P/N ZL40220 P/N ZL40222 P/N ZL40226
Internal P/N ZL40213 P/N ZL40215 P/N ZL40217 P/N ZL40219 P/N ZL40221 P/N ZL40223 P/N ZL40227

Microsemi is the market leader in network synchronization and offers an industry-leading portfolio focused on timing solutions for packet networks (SyncE and IEEE1588) and optical transport network (OTN) systems. The company offers a complete portfolio of timing products for high-performance network synchronization including digital phase locked loop (DPLL) solutions to drive network clocks, as well as analog and mixed-signal timing ICs to meet performance requirements for up to 10G/40G interfaces. Additional products include clock management solutions to simplify system and board design.

Packaging and Pricing
Microsemi's new fan-out buffers are available in production quantities now. For more information please visit or contact your local sales representative (

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, radiation-hardened and highly reliable analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and voice processing devices; RF solutions; discrete components; security technologies and scalable anti-tamper products; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 3,000 employees globally. Learn more at

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.

CONTACT: Gwen Carlson, Director of Corp. Communications, +1-949-380-6135, or Beth P. Quezada, Communications Specialist, +1-949-380-6102,

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