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810001I-21

FemtoClock™ Dual VCXO Video PLL

The 810001I-21 is a PLL based synchronous clock generator that is optimized for digital video clock jitter attenuation and frequency translation. The device contains two internal frequency multiplication stages that are cascaded in series. The first stage is a VCXO PLL that is optimized to provide reference clock jitter attenuation, and to support the complex PLL multiplication ratios needed for video rate conversion. The second stage is a FemtoClock® frequency multiplier that provides the low jitter, high frequency video output clock.
 
Preset multiplication ratios are selected from internal lookup tables using device input selection pins. The multiplication ratios are  optimized to support most common video rates used in professional video system applications. The VCXO requires the use of an external, inexpensive pullable crystal. Two crystal connections are provided (pin selectable) so that both 60 and 59.94 base frame rates can be supported. The VCXO requires external passive loop filter components which are used to set the PLL loop bandwidth and damping characteristics.

Features

  • Jitter attenuation and frequency translation of video clock signals
  • Supports SMPTE 292M, ITU-R Rec. 601/656 and MPEG-transport clocks
  • Support of High-Definition (HD) and Standard-Definition (SD) pixel rates
  • Dual VCXO-PLL supports both 60 and 59.94Hz base frame rates in one device
  • Supports both 1000/1001 and 1001/1000 rate conversions
  • Dual PLL mode for high-frequency clock generation (36MHz to 148.5MHz)
  • VCXO-PLL mode for low-frequency clock generation (27MHz and 26.973MHz)
  • One LVCMOS/LVTTL clock output
  • Two selectable LVCMOS/LVTTL clock inputs
  • LVCMOS/LVTTL compatible control signals
  • RMS phase jitter @148.3516MHz, (12kHz - 20MHz): 1.089ps (typical)
  • 3.3V supply voltage
  • -40°C to 85°C ambient operating temperature
  • Lead-free (RoHS 6) packaging

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
810001DKI-21LFActiveNLG32P3VFQFPN32IYesTrayCheck Availability
810001DKI-21LFTActiveNLG32P3VFQFPN32IYesReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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ICS810001I-21 Datasheet Datasheet PDF 214 KB Jan 23, 2014
Apps Notes & White Papers
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AN-841 Pullable Crystal Selection and VCXO Tuning Application Note PDF 248 KB Sep 23, 2014
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AN-849 Loop Filter Component Selection for VCXO Based PLLs Application Note PDF 132 KB May 14, 2014
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AN-848 VCXO - Crystal Selection Application Note PDF 138 KB May 14, 2014
show all (5)
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AN-847 VCXO - Absolute Pull Range Application Note PDF 70 KB May 13, 2014
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Crystal Timing Budget and Accuracy for FemtoClocks Application Note PDF 904 KB Jun 22, 2008
PCNs & PDNs
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PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 28, 2016
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PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 13, 2015
Other
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IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
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IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 25, 2016