FemtoClock® SAS/SATA Clock Generator

The 843441 is a low jitter, high performance clock generator. The 843441 is designed for use in applications using the SAS and SATA interconnect. The 843441 uses an external, 25MHz, parallel resonant crystal to generate four selectable output frequencies: 75MHz, 100MHz, 150MHz, and 300MHz. This silicon based approach provides excellent frequency stability and reliability. The 843441 features down and center spread spectrum (SSC) clocking techniques.

Features

  • Designed for use in SAS, SAS-2, and SATA systems
  • Center (±0.33%) Spread Spectrum Clocking (SSC)
  • Down (-0.30% or -0.60%) SSC
  • Better frequency stability than SAW oscillators
  • One differential 3.3V LVPECL output
  • Crystal oscillator interface designed for 25MHz (CL = 18pF) frequency
  • External fundamental crystal frequency ensures high reliability and low aging
  • Selectable output frequencies: 75MHz, 100MHz, 150MHz, 300MHz
  • Output frequency is tunable with external capacitors
  • RMS phase jitter: 1.33ps (typical)
  • 3.3V operating supply
  • 0°C to 70°C ambient operating temperature
  • Industrial temperature available upon request
  • Available in lead-free (RoHS 6) package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
843441AGLF Active PGG16 TSSOP 16 C Yes Tube Availability
843441AGLFT Active PGG16 TSSOP 16 C Yes Reel Availability
843441AM-300LF Active DCG8 SOIC 8 C Yes Tube Availability
843441AM-300LFT Active DCG8 SOIC 8 C Yes Reel Availability
843441AM-75LF Active DCG8 SOIC 8 C Yes Tube Availability
843441AM-75LFT Active DCG8 SOIC 8 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
843441 DATASHEET Datasheet PDF 487 KB Jun 29, 2016
PCNs & PDNs
PDN# : CQ-17-04(R1) Product Discontinuance Notice Product Discontinuation Notice PDF 606 KB Nov 29, 2017
PDN# : CQ-17-04 Product Discontinuance Notice Product Discontinuation Notice PDF 599 KB Aug 24, 2017
PDN# : CQ-16-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 552 KB May 3, 2016
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 13, 2016
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 14, 2016
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 27, 2016
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 12, 2015
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 21, 2015
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 20, 2015
PCN# : TB1403-01 Changed in Carrier Tape, Plastic Reel and Quantity per Reel on TSSOP-14, TSSOP-16 Product Change Notice PDF 663 KB Apr 7, 2014
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 23, 2013

Software & Tools

Title Other Languages Type Format File Size Date
843441 IBIS Model Model - IBIS ZIP 34 KB May 31, 2010