The 853S024 is a low skew, 1-to-24 Differential-to-3.3V, 2.5V LVPECL Fanout Buffer. The PCLK, nPCLK pair can accept most standard differential input levels. The 853S024 is characterized to operate from either a 3.3V or a 2.5V power supply. Guaranteed output skew characteristics make the 853S024 ideal for those clock distribution applications demanding well defined performance and repeatability.


  • Twenty four LVPECL outputs.
  • One differential clock input pair
  • Differential input clock (PCLK, nPCLK) can accept the following signaling levels: LVDS, LVPECL, CML
  • Maximum output frequency: 2GHz
  • Translates any single ended input signal to 3.3V, 2.5V LVPECL levels with resistor bias on nPCLK input
  • Output skew: 125ps (maximum)
  • Rise and Fall Time: 180ps (typical)
  • Additive phase jitter, RMS: 0.15ps (typical) @ 156.25MHz
  • Full 3.3V or 2.5V supply voltage
  • 0°C to 70°C ambient operating temperature
  • 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
853S024AYLF Last Time Buy EDG64P2 TQFP 64 C Yes Tray
853S024AYLFT Last Time Buy EDG64P2 TQFP 64 C Yes Reel

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
ICS853S024 Datasheet Datasheet PDF 798 KB Jul 24, 2011
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 12, 2014
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 11, 2014
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB May 10, 2014
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 7, 2014
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 5, 2014
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 94 KB May 5, 2014
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 KB May 5, 2014
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 23, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 23, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 14, 2014
PDN# : CQ-18-03 Product Discontinuance Notice Product Discontinuation Notice PDF 218 KB Apr 26, 2018
PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB Aug 25, 2016
PCN# : A1402-02 Alternate Assembly Locations Product Change Notice PDF 34 KB Sep 27, 2014
PCN# : TB1405-01 New Carrier Tape and Quantity per Reel Product Change Notice PDF 788 KB Jul 6, 2014
Timing Solutions Products Overview Overview PDF 4.11 MB Oct 31, 2018
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016

Software & Tools

Title Other Languages Type Format File Size Date
853S024 IBIS Model Model - IBIS ZIP 10 KB Jul 1, 2008