The 556-03 is a clock oscillator with quad LVDS outputs. Using a standard 25 MHz crystal, no additional external components are required to generate quad LVDS outputs at 25 MHz. This product is intended for clock generation. It has low output jitter (variation in the output period), but input to output skew and jitter are not defined nor guaranteed.


  • Packaged in 16-pin TSSOP, Pb-free
  • Requires no external components
  • Low Phase Jitter: <1ps from 10 kHz to 10 MHz
  • Quad, Differential LVDS outputs
  • Operating voltage of 2.5 Volt
  • Advanced, low-power, sub-micron CMOS process

Product Options

Orderable Part ID Part Status Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Obsolete 16 I Yes Tube
Obsolete 16 I Yes Reel

Documentation & Downloads

Title Other Languages Type Format File Size Date
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 322 KB
AN-846 Termination - LVDS Application Note PDF 133 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-834 Hot-Swap Recommendations Application Note PDF 153 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# : U-12-03R4 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 72 KB
PDN# : U-12-03R3 Product Discontinuation Notice PDF 72 KB
Clock Distribution Overview 日本語 Overview PDF 217 KB