The MK1725 generates 4 high-quality, high-frequency spread spectrum clock outputs. It is designed to replace spread spectrum clock generators and a buffer in many digital consumer applications. Using ICS' patented Phase Locked Loop (PLL) techniques, the device runs from a lower frequency clock or crystal input. The MK1725 has a 16 location ROM table which provides maximum flexibility for system designers. The chip also has a power down pin which can be used to reduce power.


  • Packaged in 16-pin TSSOP
  • Available in Pb (lead) free package
  • Replaces a spread spectrum clock generator and a buffer
  • Input clock or crystal frequency of 20-34 MHz
  • Output frequency of 20-136 MHz
  • Four spread spectrum clock outputs
  • Duty cycle of 45/55
  • Operating voltage of 3.3 V
  • Advanced, low power CMOS process

Product Options

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

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
MK1725 Datasheet Datasheet PDF 250 KB
PDN# : U-12-03R4 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 72 KB
PDN# : U-12-03R3 Product Discontinuation Notice PDF 72 KB