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Low EMI Clock Generator

The MK5814 generates a low EMI output clock from a clock or crystal input. The part is designed to dither a high emissions clock to lower EMI in consumer applications. Using IDT’s proprietary mix of analog and digital Phase-Locked Loop (PLL) technology, the device spreads the frequency spectrum of the output, reducing the frequency amplitude peaks by several dB. The MK5814 offers both centered and down spread from a high speed clock input. The device offers a 4x fixed multiplier. For different multiplier configurations, use the MK5811 (1x) or the MK5812 (2x).


  • Packaged in 8-pin SOIC
  • Provides a spread spectrum output clock
  • Supports flat panel controllers
  • Accepts a clock or crystal input (provides same frequency dithered output)
  • Input frequency range of 4 to 32 MHz
  • Output frequency range of 16 to 128 MHz
  • 4X Frequency Multiplication
  • Center and down spread
  • Peak reduction by 8 dB to 16 dB typical on 3rd through 19th odd harmonIDT
  • Low EMI feature can be disabled
  • Includes power down
  • Operating voltage of 3.3 V
  • Advanced, low-power CMOS process
  • Direct pin replacement for the
  • MK1726-04 device
  • For different multiplier configurations, use the MK5811 (1x) or the MK5812 (2x).

Product Specification

Core Voltage (V)Input Freq (MHz)Output Freq Range (MHz)Chipset Manufacturer
3.34.000000 - 32.00000016.000000 - 128.000000

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
MK5814SLFObsoleteDCG8SOIC8CYesTubeCheck Availability
MK5814SLFTRObsoleteDCG8SOIC8CYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
MK5814C Datasheet Datasheet PDF 115 KB Jul 11, 2012
Apps Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
AN-845 Termination - LVCMOS Application Note PDF 62 KB May 13, 2014
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 13, 2014
show all (10)
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
AN-839 RMS Phase Jitter Application Note PDF 149 KB May 7, 2014
AN-838 Peak-to-Peak Jitter Calculations Application Note PDF 32 KB May 7, 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
PDN# : U-13-04R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 70 KB May 28, 2013
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 24, 2013
PDN# : U-13-04 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 69 KB Mar 21, 2013
show all (4)
PCN# : A1208-01R1 Gold to Copper Wire Product Change Notice PDF 254 KB Dec 21, 2012