The MK2308-2 is a low jitter, low skew, high performance Phase-Lock Loop (PLL) based zero delay buffer for high speed applications. Based on IDT's proprietary low jitter PLL techniques, the device provides eight low skew outputs at speeds up to 133.3 MHz at 3.3 V. The MK2308-2 includes a bank of four outputs running at 1/2X. In the zero delay mode, the rising edge of the input clock is aligned with the rising edges of all eight outputs. Compared to competitive CMOS devices, the MK2308-2 has the lowest jitter.


  • Packaged in 16-pin SOIC
  • Pb (lead) free package
  • Zero input-output delay
  • Four 1X outputs plus four 1/2X outputs
  • Output to output skew is less than 250 ps
  • Output clocks up to 133.3 MHz at 3.3 V
  • Ability to generate 2X the input
  • Full CMOS outputs with 18 mA output drive capability at TTL levels at 3.3 V
  • Spread SmartTM technology works with spread spectrum clock generators
  • Advanced, low power, sub micron CMOS process
  • Operating voltage of 3.3 V

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
MK2308S-2ILF Obsolete DCG16 SOIC 16 I Yes Tube
MK2308S-2ILFT Obsolete DCG16 SOIC 16 I Yes Reel
MK2308S-2LF Obsolete DCG16 SOIC 16 C Yes Tube

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
MK2308-2 Datasheet Datasheet PDF 185 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-845 Termination - LVCMOS Application Note PDF 62 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB
AN-815 Understanding Jitter Units Application Note PDF 476 KB
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB
PDN# : CQ-18-03 Product Discontinuance Notice Product Discontinuation Notice PDF 218 KB
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : A1208-01R1 Gold to Copper Wire Product Change Notice PDF 254 KB
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB