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DVD/MPEG Clock Source

The MK2746 is a low cost, low jitter, high performance clock synthesizer for DVD and other MPEG2 based applications. Using analog Phase Locked Loop (PLL) techniques, the device accepts a 27 MHz fundamental mode crystal or clock input to produce multiple output clocks including the processor clock, audio clock, bus driver clock, SDRAM clock and a Video clock. The audio clocks are frequency locked to the 27 MHz input using our patented zero ppm error techniques, allowing audio and video to track exactly, thereby eliminating the need for large buffer memory.


  • Packaged in 16 pin TSSOP
  • Operating voltage of 3.3 V
  • Provides tight jitter controlled selectable processor clock per table.
  • Provides selectable audio clock per table.
  • Provides fixed outputs of 27 MHz (Video), 50 MHz
  • (DSP/Bus clock) and 133.33 MHz (SDRAM).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
MK2746 Datasheet Datasheet PDF 185 KB May 17, 2010
Apps Notes & White Papers
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
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 24, 2013