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SM843001-212KATR

Description
ClockWorks Fibre Channel, 212.5MHz, Ultra-Low Jitter LVPECL Clock Frequency Synthesizer
CategoryThe embedded processor and controller    Microcontrollers and processors   
File Size325KB,7 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
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SM843001-212KATR Overview

ClockWorks Fibre Channel, 212.5MHz, Ultra-Low Jitter LVPECL Clock Frequency Synthesizer

SM843001-212KATR Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerMicrochip
Parts packaging codeSOIC
package instructionTSSOP,
Contacts8
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresCAN ALSO OPERATE 3.3V SUPPLY
JESD-30 codeR-PDSO-G8
length4.4 mm
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output clock frequency212.5 MHz
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Master clock/crystal nominal frequency26.5625 MHz
Certification statusNot Qualified
Maximum seat height1.2 mm
Maximum supply voltage2.625 V
Minimum supply voltage2.375 V
Nominal supply voltage2.5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
width3 mm
uPs/uCs/peripheral integrated circuit typeCLOCK GENERATOR, OTHER
Base Number Matches1
SM843001-212
ClockWorks
TM
Fibre Channel, 212.5MHz,
Ultra-Low Jitter LVPECL Clock Frequency
Synthesizer
General Description
The SM843001-212 is a Fibre Channel, 212.5MHz
LVPECL clock frequency synthesizer and a member of the
ClockWorks™ family of devices from Micrel. It provides a
low-noise timing solution for high-speed, high-accuracy
synthesis of clock signals. It includes a patented
RotaryWave
®
architecture that provides a stable clock with
very low phase noise.
Power supplies of either 2.5V or 3.3V are supported, with
superior jitter and phase noise performance. The device
synthesizes a 212.5MHz, low-noise, LVPECL output for
Fibre Channel applications. The crystal reference
frequency used is 26.5625MHz.
The SM843001-212 is an excellent replacement for IDT
FemtoClocks®, with improved waveform integrity, and
jitter.
Data sheets and support documentation can be found on
Micrel’s web site at:
www.micrel.com.
Features
Generates a low jitter LVPECL output
2.5V or 3.3V operating voltage
Typical phase jitter ~170fs
(637kHz to 10MHz) @212.5MHz
Crystal frequency: 26.5625MHz
212.5MHz output frequency
RMS Phase Noise @ 212.5MHz:
– 1kHz:
−119dBc/Hz
– 10kHz:
−127dBc/Hz
– 100kHz:
−135dBc/Hz
– 1MHz:
−138dBc/Hz
– 10MHz:
−160dBc/Hz
– 20MHz:
−165dBc/Hz
Industrial temperature range
Green, RoHS-, and PFOS-compliant
Available in 8-pin TSSOP
Applications
Fibre Channel
Storage Networking (SAN)
___________________________________________________________________________________________________________
Block Diagram
ClockWorks is a trademark of Micrel, Inc.
RotaryWave is a registered trademark of Multigig, Inc.
FemtoClocks is a registered trademark of IDT, 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
October 2010
M9999-100410-A
hbwhelp@micrel.com
or (408) 955-1690

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SM843001-212KATR SM843001-212
Description ClockWorks Fibre Channel, 212.5MHz, Ultra-Low Jitter LVPECL Clock Frequency Synthesizer ClockWorks Fibre Channel, 212.5MHz, Ultra-Low Jitter LVPECL Clock Frequency Synthesizer
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