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. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Package Buy Sample
853S024AYLF Obsolete TQFP 64 C Yes Tray Package Info
853S024AYLFT Obsolete TQFP 64 C Yes Reel Package Info

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ICS853S024 Datasheet Datasheet PDF 897 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 322 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 170 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 495 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 442 KB
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 180 KB
AN-834 Hot-Swap Recommendations Application Note PDF 153 KB
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 120 KB
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 160 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.15 MB
AN-815 Understanding Jitter Units Application Note PDF 565 KB
AN-805 Recommended Ferrite Beads Application Note PDF 121 KB
PDN# : CQ-18-03 Product Discontinuance Notice Product Discontinuation Notice PDF 218 KB
PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB
PCN# : A1402-02 Alternate Assembly Locations Product Change Notice PDF 34 KB
PCN# : TB1405-01 New Carrier Tape and Quantity per Reel Product Change Notice PDF 788 KB
853S024 IBIS Model Model - IBIS ZIP 10 KB
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB