The MK2772-01 is a low cost, low jitter, high-performance VCXO and clock synthesizer for Set-Top Boxes. The on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3 V input voltage to cause the output clocks to vary by ±100 ppm. Using IDT's patented VCXO and analog Phase-Locked Loop (PLL) techniques, the device uses an inexpensive 13.5 MHz crystal input to produce multiple output clocks. All clocks are frequency locked to the 27.00 MHz output (and to each other) with zero ppm error. The MK2772 includes a glitch-free multiplexer to switch input sources during operation. IDT manufactures the largest variety of Set-Top Box and multimedia clock synthesizers for all applications. Consult IDT to eliminate VCXOs, crystals and oscillators from your board.


  • Packaged in 20-pin SOIC
  • Uses an inexpensive 13.5 MHz crystal
  • On-chip VCXO (patented) with pull range of 200 ppm (minimum)
  • Ability to switch input sources "on-the-fly"
  • VCXO tuning voltage of 0 to 3 V
  • Zero ppm synthesis error (patented) in all clocks. All exactly track 27 MHz VCXO
  • All clocks are frequency locked. All will vary the same amount (in ppm) as the VCXO
  • Selectable Audio clock for 256x, 384x, and 512x.
  • 25 mA output drive capability at TTL levels
  • Advanced, low power, sub-micron CMOS process
  • 5 V operating voltage

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
MK2772-01SLF Obsolete PSG20 SOIC 20 C Yes Tube
MK2772-01SLFTR Obsolete PSG20 SOIC 20 C Yes Reel

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
MK2772-01 Datasheet Datasheet PDF 494 KB Oct 26, 2004
Application 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 13, 2014
AN-848 VCXO - Crystal Selection Application Note PDF 138 KB May 13, 2014
AN-847 VCXO - Absolute Pull Range Application Note PDF 70 KB May 12, 2014
AN-800 Approved VCXO Crystals Application Note PDF 63 KB Jan 27, 2014
Using IDT's Integrated VCXO Products MAN05 Application Note PDF 69 KB Jun 5, 2012
PDN# : CQ-14-06R1 Revised Product Discontinuance Notice Product Discontinuation Notice PDF 407 KB Sep 7, 2014
PDN# : CQ-14-06 MANUFACTURING DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 192 KB Sep 3, 2014
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 23, 2013
PCN# : A1208-01R1 Gold to Copper Wire Product Change Notice PDF 254 KB Dec 20, 2012