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Low Cost 54 MHz 3.3 Volt VCXO

The MK3754 is IDT's lowest cost, low jitter, high-performance 3.3 volt VCXO and PLL clock synthesizer designed to replace expensive 54 MHz VCXOs. The on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3.3 V input voltage to vary the output clocks by ±100 ppm. Using IDT's patented VCXO and analog Phase-Locked Loop (PLL) techniques, the device uses an inexpensive external 13.5 MHz pullable crystal input to produce a 54 MHz output clock. IDT manufactures the largest variety of Set-Top Box and multimedia clock synthesizers for all applications. If more clock outputs are needed, see the MK2731 or MK277x family of parts.


  • Packaged in 8-pin SOIC
  • Available in Pb (lead) free package
  • 3.3 V operating voltage
  • Uses an inexpensive 13.500 MHz external crystal
  • On-chip VCXO (patented) with pull range of 200 ppm (minimum)
  • VCXO tuning voltage of 0 to 3.3 V
  • 12mA output drive capability at TTL levels
  • Advanced, low power, sub-micron CMOS process

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Inputs (#)Input TypeInput Freq (MHz)Output Voltage (V)Output Banks (#)Phase Jitter Typ RMS (ps)


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
MK3754 Datasheet Datasheet PDF 173 KB Jul 28, 2005
Apps Notes & White Papers
AN-841 Pullable Crystal Selection and VCXO Tuning Application Note PDF 248 KB Sep 23, 2014
AN-849 Loop Filter Component Selection for VCXO Based PLLs Application Note PDF 132 KB May 14, 2014
AN-848 VCXO - Crystal Selection Application Note PDF 138 KB May 14, 2014
show all (7)
AN-847 VCXO - Absolute Pull Range Application Note PDF 70 KB May 13, 2014
AN-800 Approved VCXO Crystals Application Note PDF 63 KB Jan 28, 2014
Using IDT's Integrated VCXO Products MAN05 Application Note PDF 69 KB Jun 6, 2012
Ferrite Bead Recommendations Application Note PDF 25 KB Mar 9, 2006
PDN# : U-13-05 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 159 KB Apr 10, 2013
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 24, 2013