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MK3732-10 - Block Diagram
MK3732-10 - Pinout


VCXO And Multiplier

The MK3732-10 is a low cost, low jitter, high performance VCXO and PLL clock synthesizer designed to replace expensive discrete VCXOs and multipliers. The patented on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3.3 V input voltage to cause the output clocks to vary by ±115 ppm. Using IDT' analog/digital Phase-Locked Loop (PLL) techniques, the device uses an inexpensive 27 MHz pullable crystal input to produce three output clocks. IDT manufactures the largest variety of MPEG clock synthesizers for all applications. Consult IDT to eliminate VCXOs, crystals, and oscillators from your board.


  • Packaged in 16 pin SOIC
  • Replaces a VCXO and oscillator
  • Contains popular multiplier values
  • Uses an inexpensive 27 MHz pullable crystal
  • Includes popular audio frequencies from 27 MHz
  • On-chip patented VCXO with pull range of 230 ppm (±115 ppm) minimum
  • VCXO tuning voltage of 0 to 3.3 V
  • Advanced, low power, sub-micron CMOS process
  • Operating voltage of 3.3 V

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Input Freq (MHz)Inputs (#)Input TypeOutput Banks (#)Core Voltage (V)Output Voltage (V)
3LVCMOS8.000000 - 162.00000016.000000 - 28.0000001Crystal33.33.3

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
MK3732-10SLFObsoleteDCG16SOIC16CYesTubeCheck Availability
MK3732-10SLFTRObsoleteDCG16SOIC16CYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
MK3732-10 Datasheet Datasheet PDF 198 KB May 17, 2010
Apps Notes & White Papers
AN-841 Pullable Crystal Selection and VCXO Tuning Application Note PDF 248 KB Sep 23, 2014
AN-848 VCXO - Crystal Selection Application Note PDF 138 KB May 14, 2014
AN-849 Loop Filter Component Selection for VCXO Based PLLs Application Note PDF 132 KB May 14, 2014
show all (6)
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
PDN# : U-13-05R2 PRODUCT DISCONTINUANCE NOTICE (REVISED) Product Discontinuation Notice PDF 161 KB Oct 29, 2013
PDN# : U-13-05R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 161 KB Jul 25, 2013
PDN# : U-13-05 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 159 KB Apr 10, 2013