NOTICE - The following device(s) are recommended alternatives:

The 810001-21 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.


  • 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
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free (RoHS 6) package


下单器件 ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Obsolete VFQFPN 32 C 是的 Tray
Obsolete VFQFPN 32 C 是的 Reel


文档标题 其他语言 类型 文档格式 文件大小 日期
810001-21 Datasheet 数据手册 PDF 349 KB
应用指南 &白皮书
AN-841 Pullable Crystal Selection and VCXO Tuning 应用文档 PDF 334 KB
AN-848 VCXO - Crystal Selection 应用文档 PDF 222 KB
AN-849 Loop Filter Component Selection for VCXO Based PLLs 应用文档 PDF 218 KB
AN-847 VCXO - Absolute Pull Range 应用文档 PDF 155 KB
Crystal Timing Budget and Accuracy for FemtoClocks 应用文档 PDF 829 KB
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility 产品变更通告 PDF 983 KB
PDN# : CQ-19-01(R1) Quarterly Market Declined PDN 产品停产通告 PDF 1014 KB
PDN# : CQ-19-01 Quarterly Market Declined PDN 产品停产通告 PDF 537 KB
PCN# : A1611-02 Add JCET China as Alternate Assembly and Change of Material Set at Alternate Assembly Location 产品变更通告 PDF 583 KB
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location 产品变更通告 PDF 596 KB
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location 产品变更通告 PDF 544 KB
Timing Solutions Products Overview 概览 PDF 4.11 MB
IDT Clock Generation Overview 日本語 概览 PDF 1.83 MB
IDT Clock Distribution Overview 日本語 概览 PDF 3.79 MB