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SM802116UMG

ClockWorks™ Fibre Channel (106.25MHz, 212.5MHz) Ultra-Low Jitter, LVDS Frequency Synthesizer

Micrel 

SM802116

ClockWorks™ Fibre Channel

(106.25MHz, 212.5MHz)

Ultra-Low Jitter, LVDS Frequency

Synthesizer

General Description

The SM802116 is a member of the ClockWorks™ family of

devices from Micrel and provides an extremely low-noise

timing solution for Fibre Channel clock signals. It is based

upon a unique patented RotaryWave® architecture that

provides very-low phase noise.

The device operates from a 3.3V or 2.5V power supply

and synthesizes LVDS output clocks at 106.25MHz or

212.5MHz. There are normally two clock outputs, but one

output can be achieved by powering down the second

output with the OE pin. The SM802116 accepts a

26.5625MHz crystal or LVCMOS reference clock.

Data sheet and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Features

• Generates one or two LVDS clock outputs at

106.25MHz or 212.5MHz

• 2.5V or 3.3V operating range

• Typical phase jitter @ 106.25MHz

(637kHz to 10MHz): 190fs

• Industrial temperature range (–40°C to +85°C)

• Green, RoHS, and PFOS compliant

• Available in 24-pin 4mm × 4mm QFN package

Applications

• Fibre Channel

• Storage Networking (SAN, NAS)

Block Diagram

ClockWorks is a trademark of Micrel, Inc

RotaryWave is a registered trademark of Multigig, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

July 2011

M9999-071811-A

hbwhelp@micrel.com or (408) 955-1690

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