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SM840001

MICREL
Part Number SM840001
Manufacturer MICREL
Description 106.25MHz Ultra-Low Jitter Clock Synthesizer
Published Mar 10, 2011
Detailed Description SM840001 106.25MHz Ultra-Low Jitter Clock Synthesizer General Description The SM840001 synthesizer series were designed...
Datasheet PDF File SM840001 PDF File

SM840001
SM840001

Overview
SM840001 106.
25MHz Ultra-Low Jitter Clock Synthesizer General Description The SM840001 synthesizer series were designed for Fibre Channel applications.
The device design is optimized for 106.
25MHz or 212.
5MHz using a 26.
5625MHz fundamental parallel resonant crystal, with stability and accuracy over the full operating range.
The SM840001 includes a unique power reduction methodology, along with a patented RotaryWaveTM architecture, that provides a stable clock with very low noise for optimized performance.
This yields an overall improved Bit Error Rate (BER) and improved waveform integrity.
Datasheets and support documentation can be found on Micrel’s web site at: www.
micrel.
com.
Features • Generates a single LVCMOS/LVTTL output • Integrated loop filter components • RMS Phase Jitter: - 510 fs (typ) at 106.
25MHz - 320 fs (typ) at 212.
50MHz • Operates with either a 3.
3V or 2.
5V supply • Power consumption is <77mA @ 3.
3 V • Fundamental crystal oscillator interface • Input frequency of 26.
5625 MHz parallel resonant • Selectable output frequency: 106.
25MHz or 212.
5MHz • Temperature range: –40°C to +75°C • Available in 8-pin TSSOP package Applications • Fibre Channel • Storage ___________________________________________________________________________________________________________ Block Diagram www.
DataSheet4U.
com RotaryWave is a 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 March 2010 M9999-031810-B hbwhelp@micrel.
com or (408) 955-1690 Micrel, Inc.
SM840001 Ordering Information(1) Part Number SM840001KA SM840001KA TR Note: 1.
Devices are Green, RoHS-compliant and PFOS-compliant.
2.
Tape and Reel.
(2) Package Type K-8 K-8 Operating Range -40°C to +75°C -40°C to +75°C Package Marking 840001 840001 Lead Finish NiPdAu NiPdAu Pin Configuration 8-Pin TSSOP (K-8) Pin Description Pin Number 1 2 3 4 5 6 7 8 Pin Name VDDA OE XTAL OUT XTAL IN FSEL GN...


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