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 Obsolete EDG64P2 TQFP 64 C Yes Tray
853S024AYLFT Obsolete EDG64P2 TQFP 64 C Yes Reel

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-835 Differential Input with VCMR being VIH Referenced Application Note PDF 160 KB
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 180 KB
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 120 KB
AN-834 Hot-Swap Recommendations Application Note PDF 153 KB
AN-815 Understanding Jitter Units Application Note PDF 565 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.15 MB
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

Boards & Kits