sm843001-106 Micrel Semiconductor, sm843001-106 Datasheet

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sm843001-106

Manufacturer Part Number
sm843001-106
Description
Clockworks Fibre Channel, 106.25mhz, Ultra-low Jitter Lvpecl Clock Frequency Synthesizer
Manufacturer
Micrel Semiconductor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
sm843001-106KA
Manufacturer:
Micrel
Quantity:
300
General Description
The SM843001-106 is a Fibre Channel, 106.25MHz
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
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 106.25MHz, low-noise, LVPECL output for
Fibre
frequency used is 26.5625MHz.
The SM843001-106 is an excellent replacement for IDT
FemtoClocks
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
___________________________________________________________________________________________________________
Block Diagram
October 2010
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 (
Channel
®
®
architecture that provides a stable clock with
, with improved waveform integrity, and jitter.
applications.
The
crystal
reference
Features
• Generates a low jitter LVPECL output
• 2.5V or 3.3V operating voltage
• Typical phase jitter ~170 fs (637kHz to 10MHz)
• Crystal frequency: 26.5625MHz
• 106.25MHz output frequency
• RMS Phase Noise @ 106.25MHz:
• Industrial temperature range
• Green-, RoHS-, and PFOS-compliant
• Available in 8-pin TSSOP
Applications
408
ClockWorks™
Ultra-Low Jitter LVPECL Clock Frequency
@106.25MHz
– 1kHz:
– 10kHz:
– 100kHz:
– 1MHz:
– 10MHz:
– 20MHz:
) 944-0800 • fax + 1 (408) 474-1000 •
Fibre Channel
Storage Networking (SAN)
SM843001-106
−127dBc/Hz
−134dBc/Hz
−142dBc/Hz
−144dBc/Hz
−165dBc/Hz
−168dBc/Hz
Synthesizer
Fibre Channel, 106.25MHz,
hbwhelp@micrel.com
http://www.micrel.com
or (408) 955-1690
M9999-100610-A

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sm843001-106 Summary of contents

Page 1

... The device synthesizes a 106.25MHz, low-noise, LVPECL output for Fibre Channel applications. frequency used is 26.5625MHz. The SM843001-106 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. ...

Page 2

... Micrel, Inc. (1) Ordering Information Part Number SM843001-106KA (2) SM843001-106KA TR Notes: 1. Devices are Green-, RoHS-, and PFOS-compliant. 2. Tape and Reel. Pin Configuration Pin Description Pin Number Pin Name 1 V DDA XTAL_OUT 4 XTAL_IN / October 2010 Package Type Operating Range ...

Page 3

... TSSOP (θ (3) Condition No load Condition No load (3)( –40°C to +85°C, unless noted A Condition − 2V 50Ω − 2V 50Ω SM843001-106 (2) )............................. +2.375V to +3.465V IN ) .......................... –40°C to +85°C A )(Still Air).......................................141°C/W JA Min. Typ. Max. 3.135 3.30 3.465 3.135 3.30 3.465 48 60 ...

Page 4

... Condition 26.5625MHz Crystal Integration Range: 637kHz to 10MHz 20% to 80% Condition 12pF Load 4 Min. Typ. 106.25 170 80 150 48 50 Min. Typ. Max. Fundamental, Parallel Resonant 26.5625 50 3 100 300 hbwhelp@micrel.com SM843001-106 Max. Units MHz fs 350 Units MHz Ω M9999-100610-A or (408) 955-1690 ...

Page 5

... Micrel, Inc. October 2010 Figure 1. Duty Cycle Timing Figure 2. All Outputs Rise/Fall Time Figure 3. RMS Phase Noise/Jitter 5 SM843001-106 M9999-100610-A hbwhelp@micrel.com or (408) 955-1690 ...

Page 6

... Micrel, Inc. October 2010 Figure 4. LVPECL Output Load and Test Circuit Figure 5. Crystal Input Interface 6 SM843001-106 M9999-100610-A hbwhelp@micrel.com or (408) 955-1690 ...

Page 7

... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully October 2010 8-Pin TSSOP (K-8) indemnify Micrel for any damages resulting from such use or sale. © 2010 Micrel, Incorporated. 7 SM843001-106 http://www.micrel.com M9999-100610-A hbwhelp@micrel.com or (408) 955-1690 nt ...

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