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Low EMI Clock Generator

The MK1704A is an upgraded version of the MK1704 and is recommended for all new designs. It offers more reduction in the frequency amplitude peaks and will support frequencies up to 140 MHz. The MK1704A generates a low EMI output clock from a clock input. The part is designed to dither the LCD interface clock or other clocks for flat panel graphIDT controllers. The MK1704A uses IDT’s proprietary mixture of analog and digital Phase Locked Loop (PLL) technology to synthesize the frequency. It also uses IDT’s patented technique to spread the frequency spectrum of the output, thereby reducing the frequency amplitude peaks by several dB.


  • 8 pin SOIC package
  • Available in Pb (lead) free package
  • Provides a spread spectrum output clock
  • Supports leading flat panel controllers
  • Accepts a clock input, provides same frequency dithered output
  • Optimized for higher resolutions that require up to 140 MHz, as well as 40 MHz (SVGA) and 65 MHz (XVGA) clocks
  • Peak reduction by 7 dB - 14 dB typical on 3rd - 19th odd harmonIDT
  • Low EMI feature can be disabled
  • Operating voltage of 3.3V or 5V
  • Advanced, low power CMOS process
  • See the MK1714-01 for a multiplier with low EMI which can operate from a crystal

Product Specification

Core Voltage (V)Input Freq (MHz)Output Freq Range (MHz)Chipset Manufacturer
3.3, 530.000000 - 140.00000030.000000 - 140.000000

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
MK1704ALFObsoleteDCG8SOIC8CYesTubeCheck Availability
MK1704ALFTRObsoleteDCG8SOIC8CYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
MK1704A Datasheet Datasheet PDF 181 KB May 17, 2010
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# : CQ-14-06R1 Revised Product Discontinuance Notice Product Discontinuation Notice PDF 407 KB Sep 8, 2014
PDN# : CQ-14-06 MANUFACTURING DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 192 KB Sep 4, 2014
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 24, 2013
show all (4)
PCN# : A1208-01R1 Gold to Copper Wire Product Change Notice PDF 254 KB Dec 21, 2012