Low Skew, 1-to-8 LVCMOS Clock Multiplier/Zero Delay Buffer

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

The 8752 is a low voltage, low skew LVCMOS clock generator. With output frequencies up to 240MHz, the 8752 is targeted for high performance clock applcations. Along with a fully integrated PLL, the 8752 contains frequency configurable outputs and an external feedback input for regenerating clocks with "zero delay".

Dual clock inputs, CLK0 and CLK1, support redundant clock applications. The CLK_SEL input determines which reference clock is used. The output divider values of Bank A and B are controlled by the DIV_SELA0:1, and DIV_SELB0:1, respectively.

For test and system debug purposes, the PLL_SEL input allows the PLL to be bypassed. When HIGH, the MR/nOE input resets the internal dividers and forces the outputs to the high impedance state.

The low impedance LVCMOS outputs of the 8752 are designed to drive terminated transmission lines. The effective fanout of each output can be doubled by utilizing the ability of each output to drive two series terminated transmission lines.

Features

  • Fully integrated PLL
  • Eight LVCMOS outputs, 7Ω typical output impedance
  • Selectable LVCMOS CLK0 or CLK1 inputs for redundant clock applications
  • Input/Output frequency range: 18.33MHz to 240MHz at VCC = 3.3V ± 5%
  • VCO range: 220MHz to 480MHz
  • External feedback for "zero delay" clock regeneration
  • Cycle-to-cycle jitter: 75ps (maximum), (all outputs are the same frequency)
  • Output skew: 100ps (maximum)
  • Bank skew: 55ps (maximum)
  • Full 3.3V or 2.5V supply voltage
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free RoHS-compliant package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
8752CYLF Last Time Buy PRG32 TQFP 32 C Yes Tray Availability
8752CYLFT Last Time Buy PRG32 TQFP 32 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
8752 Datasheet - Datasheet PDF 139 KB Jul 27, 2010
Application Notes & White Papers
AN-828 Termination - LVPECL - Application Note PDF 229 KB Jul 5, 2016
AN-815 Understanding Jitter Units - Application Note PDF 476 KB Apr 23, 2014
AN-845 Termination - LVCMOS - Application Note PDF 62 KB May 12, 2014
AN-844 Termination - AC Coupling Clock Receivers - Application Note PDF 82 KB May 12, 2014
AN-842 Thermal Considerations in Package Design and Selection - Application Note PDF 403 KB May 11, 2014
AN-840 Jitter Specifications for Timing Signals - Application Note PDF 349 KB May 7, 2014
AN-834 Hot-Swap Recommendations - Application Note PDF 67 KB May 5, 2014
AN-827 Application Relevance of Clock Jitter - Application Note PDF 1.06 MB Apr 23, 2014
AN-805 Recommended Ferrite Beads - Application Note PDF 38 KB Jan 14, 2014
PCNs & PDNs
PDN# : CQ-16-02 Quarter PDN for Declined Market - Product Discontinuation Notice PDF 592 KB Aug 24, 2016
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly - Product Change Notice PDF 611 KB Apr 13, 2016
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly - Product Change Notice PDF 611 KB Feb 14, 2016
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages - Product Change Notice PDF 95 KB Oct 21, 2015
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages - Product Change Notice PDF 50 KB Jul 20, 2015
PCN# : A1401-02 Alternate Copper Wire Assembly Site - Product Change Notice PDF 36 KB Feb 15, 2014
PCN# : TB1303-01 Change of Carrier Tape for TQFP-32, TQFP-48 - Product Change Notice PDF 472 KB Mar 30, 2013
Other
The IDT Communications Products Advantage - Overview PDF 2.54 MB Feb 13, 2017
The IDT Consumer Products Advantage - Overview PDF 6.67 MB Jan 27, 2017
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
The IDT Automotive Advantage - Overview PDF 5.67 MB Jan 18, 2017
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016

Software & Tools

Title Other Languages Type Format File Size Date
8752 IBIS Model - Model - IBIS ZIP 67 KB Aug 11, 2009