SM843001-212KATR MICREL [Micrel Semiconductor], SM843001-212KATR Datasheet

no-image

SM843001-212KATR

Manufacturer Part Number
SM843001-212KATR
Description
ClockWorks Fibre Channel, 212.5MHz, Ultra-Low Jitter LVPECL Clock Frequency Synthesizer
Manufacturer
MICREL [Micrel Semiconductor]
Datasheet
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
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
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.
___________________________________________________________________________________________________________
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
applications.
The
crystal
reference
Features
• Generates a low jitter LVPECL output
• 2.5V or 3.3V operating voltage
• Typical phase jitter ~170fs
• Crystal frequency: 26.5625MHz
• 212.5MHz output frequency
• RMS Phase Noise @ 212.5MHz:
• Industrial temperature range
• Green, RoHS-, and PFOS-compliant
• Available in 8-pin TSSOP
Applications
408
Ultra-Low Jitter LVPECL Clock Frequency
ClockWorks
(637kHz to 10MHz) @212.5MHz
– 1kHz:
– 10kHz:
– 100kHz:
– 1MHz:
– 10MHz:
– 20MHz:
) 944-0800 • fax + 1 (408) 474-1000 •
Fibre Channel
Storage Networking (SAN)
SM843001-212
−119dBc/Hz
−127dBc/Hz
−135dBc/Hz
−138dBc/Hz
−160dBc/Hz
−165dBc/Hz
TM
Synthesizer
hbwhelp@micrel.com
Fibre Channel, 212.5MHz,
http://www.micrel.com
or (408) 955-1690
M9999-100410-A

Related parts for SM843001-212KATR

SM843001-212KATR Summary of contents

Page 1

... The device synthesizes a 212.5MHz, low-noise, LVPECL output for Fibre Channel applications. 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. ___________________________________________________________________________________________________________ Block Diagram ClockWorks is a trademark of Micrel, Inc ...

Page 2

... Micrel, Inc. (1) Ordering Information Part Number SM843001-212KA (2) SM843001-212KA TR Notes: 1. Devices are Green, RoHS-compliant and PFOS-compliant. 2. Tape and Reel. Pin Configuration Pin Description Pin Number Pin Name Type 1 V PWR DDA 2 V PWR EE 3 XTAL_OUT O, (SE) 4 XTAL_IN I, (SE /Q0 O, (DIF ...

Page 3

... Junction Thermal Resistance TSSOP (θ (3) Condition No load Condition No load (3)( –40°C to +85°C, unless noted A Condition − 2V 50Ω 50Ω - SM843001-212 (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. 212.5 170 80 150 48 50 Min. Typ. Max. Fundamental, Parallel Resonant 26.5625 50 3 100 300 hbwhelp@micrel.com SM843001-212 Max. Units MHz fs 350 Units MHz Ω M9999-100410-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 SM843001-212 M9999-100410-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 SM843001-212 M9999-100410-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 SM843001-212 http://www.micrel.com M9999-100410-A hbwhelp@micrel.com or (408) 955-1690 nt ...

Related keywords