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854S015I-01 - Block Diagram
854S015I-01 - Pinout


Low Skew,1-to-5 Differential-to- LVDS,LVPECL Fanout Buffer

The 854S015-01 is a low skew, high performance 1-to-5, 2.5V, 3.3V Differential-to-LVPECL/ LVDS Fanout Buffer and a member of the HiPerClockS™ family of High Performance Clock Solutions from IDT. The 854S015-01 has two selectable differential clock inputs. Guaranteed output and part-to-part skew characteristics make the 854S015-01 ideal for those applications demanding well defined performance and repeatability.


  • Five differential LVDS or LVPECL outputs
  • Two differential clock input pairs
  • CLK, nCLK pair can accept the following differential input levels: LVDS, LVPECL, LVHSTL, SSTLHCSL
  • PCLK, nPCLK pair can accept the following differential input levels: LVPECL, CMLSSTL
  • Either CLK or PCLK inputs can be configured to accept single-ended inputs
  • Maximum output frequency: >2GHz
  • Output skew: 25ps (typical)
  • Propagation delay: 575ps (typical)
  • Full 3.3V or 2.5V power supply
  • 0°C to 70°C ambient operating temperature
  • Available in 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)
5LVPECL, LVDS0.000000 - 2000.0000000.000000 - 2000.0000002HCSL, LVDS, HSTL, LVPECL, CML12.5, 3.3550.034

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
854S015CKI-01LFActiveNLG24P1VFQFPN24IYesTubeCheck Availability
854S015CKI-01LFTActiveNLG24P1VFQFPN24IYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
ICS854S015I-01 Datasheet Datasheet PDF 930 KB Oct 4, 2011
Apps Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
show all (7)
AN-834 Hot-Swap Recommendations Application Note PDF 67 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
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