FemtoClock™ Dual VCXO Video PLL

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

The 810001-22 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 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 59.94Hz 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 SMTPE 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
  • Dual PLL mode for high-frequency clock generation (32.967MHz to 162MHz)
  • VCXO-PLL mode for low-frequency clock generation (27MHz and 26.973MHz)
  • One LVCMOS/LVTTL PLL clock output
  • Two selectable LVCMOS/LVTTL input clocks
  • LVCMOS/LVTTL compatible control signals
  • RMS phase jitter @148.5MHz, using a 27MHz crystal (12kHz - 20MHz): 1.01ps (typical)
  • 3.3V supply voltage
  • 0°C to 70°C ambient operating temperature
  • Available in a lead-free (RoHS 6) 32-VFQFN package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
810001BK-22LF Obsolete NLG32P1 VFQFPN 32 C Yes Tray Availability
810001BK-22LFT Obsolete NLG32P1 VFQFPN 32 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
810001-22 Datasheet Datasheet PDF 176 KB Feb 3, 2017
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
PCNs & PDNs
PDN# : CQ-15-04 Quarterly Market Declined PDN Product Discontinuation Notice PDF 545 KB Aug 12, 2015
Other
The IDT Communications Products Advantage Overview PDF 2.54 MB Feb 13, 2017
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016

News & Additional Resources