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853S111BI - Block Diagram
853S111BI - Pinout


Low Skew, 1-to-10 Differential-to-2.5V, 3.3V LVPECL / ECL Fanout Buffer

The 853S111BI is a low skew, high performance 1-to-10 Differential-to-2.5V/ 3.3V LVPECL/ECL Fanout Buffer. The 853S111BI is characterized to operate from either a 2.5V or a 3.3V power supply. Guaranteed output and part-to-part skew characteristics make the 853S111BI ideal for those clock distribution applications demanding well defined performance and repeatability.


  • Ten differential 2.5V, 3.3V LVPECL/ECL outputs
  • Two selectable differential input pairs
  • PCLKx, nPCLKx pairs can accept the following differential input levels: LVPECL, LVDSSSTL
  • Maximum output frequency: 2.5GHz
  • Translates any single-ended input signal to 3.3V LVPECL levels with resistor bias on nPCLK input
  • Output skew: 50ps (maximum)
  • Part-to-part skew: 150ps (maximum)
  • Propagation delay: 645ps (maximum)
  • Additive Phase Jitter, RMS: 0.03ps (typical)
  • LVPECL mode operating voltage supply range: VCC = 2.375V to 3.8V, VEE = 0V
  • ECL mode operating voltage supply range: VCC = 0V, VEE = -3.8V to -2.375V
  • -40°C to 85°C ambient operating temperature
  • Available lead-free (RoHS 6) package

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Input Freq (MHz)Inputs (#)Input TypeOutput Banks (#)Core Voltage (V)Output Skew (ps)Additive Phase Jitter Typ RMS (ps)
10LVPECL0.000000 - 2500.0000000.000000 - 2500.0000002LVPECL, LVDS, SSTL12.5, 3.3500.03

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
853S111BKILFActiveNLG32P1VFQFPN32IYesTrayCheck Availability
853S111BKILF/WActiveNLG32P1VFQFPN32IYesReelCheck Availability
853S111BKILFTActiveNLG32P1VFQFPN32IYesReelCheck Availability
853S111BYILFActiveDXG32PTQFP32IYesTrayCheck Availability
853S111BYILFTActiveDXG32PTQFP32IYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
853S111B Datasheet Datasheet PDF 445 KB Jan 14, 2016
Apps 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 13, 2014
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
show all (11)
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 6, 2014
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB May 6, 2014
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 94 KB May 6, 2014
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 KB May 6, 2014
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 24, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 24, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 28, 2016
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 13, 2015
PCN# : A1402-02 Alternate Assembly Locations Product Change Notice PDF 34 KB Sep 28, 2014
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 25, 2016

Software & Tools

Title Type Format File Size Datesort icon
853S111B IBIS Model Model - IBIS ZIP 76 KB Dec 15, 2010