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MPEG Clock Synthesizer

The 650-12 is a low cost, low-jitter, high-performance clock synthesizer designed to produce fixed clock outputs of 13.5 MHz and 27.0 MHz, and four selectable clock outputs: two Processor Clocks (PCLK1) and PCLK2), an Audio Clock, and a Communications Clock (CCLK). Using analog Phase-Locked Loop (PLL) techniques, the device uses a 27.0 MHz clock or fundamental crystal to produce clocks ideal for Digital Video/MPEG-based applications.


  • Packaged in 20-pin tiny SSOP (QSOP)
  • RoHS 5 (green) or RoHS 6 (green and lead free)
    compliant package
  • Input frequency of 27.0 MHz
  • Zero ppm synthesis error in output clocks
  • Provides fixed 13.5 MHz and 27.0 MHz. Also provides two selectable processor clocks, one audio clock, and one communications clock.
  • Ideal for digital video MPEG-based applications
  • 3.3 V or 5.0 V operating voltage
  • Entire chip powers down (when CS1=CS0=0)

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Inputs (#)Input TypeInput Freq (MHz)Output Voltage (V)Output Banks (#)Phase Jitter Typ RMS (ps)
60.00000027.0000003.3, 5

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
650R-12LFObsoletePCG20QSOP20CYesTubeCheck Availability
650R-12LFTObsoletePCG20QSOP20CYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
650-12 Datasheet Datasheet PDF 183 KB May 14, 2010