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

The 8524 is a low skew, 1-to-22 Differential-to-HSTL Fanout Buffer . The 8524 has two selectable clock inputs. The CLK, nCLK pair can accept most standard differential input levels. The PCLK, nPCLK pair can accept LVPECL, CML, or SSTL input levels. The device is internally synchronized to eliminate runt pulses on the outputs during asynchronous assertion/deassertion of the OE pin. The 8524's low output and part-to-part skew characteristics make it ideal for workstation, server, and other high performance clock distribution applications.

Features

  • Twenty-two differential HSTL outputs each with the ability to drive 50? to ground
  • Selectable differential CLK, nCLK or LVPECL clock inputs
  • CLK, nCLK pair can accept the following differential input levels: LVPECL, LVDS, HSTL, SSTL, HCSL
  • PCLK, nPCLK supports the following input types: LVPECL, CML, SSTL
  • Maximum output frequency: 500MHz
  • Translates any single-ended input signal (LVCMOS, LVTTL, GTL) to HSTL levels with resistor bias on nCLK input
  • Output skew: 80ps (maximum)
  • Part-to-part skew: 700ps (maximum)
  • Jitter, RMS: 0.04ps (typical)
  • LVPECL and HSTL mode operating voltage supply range: VDD = 3.3V ± 5%, VDDO = 1.6V to 2V, GND = 0V
  • 0°C to 85°C ambient operating temperature

Product Options

Orderable Part ID Part Status Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Obsolete 64 C Yes Tray
Availability
Obsolete 64 C Yes Reel
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
8524 Datasheet Datasheet PDF 354 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 322 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 170 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 495 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 442 KB
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 180 KB
AN-834 Hot-Swap Recommendations Application Note PDF 153 KB
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 120 KB
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 160 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.15 MB
AN-815 Understanding Jitter Units Application Note PDF 565 KB
AN-805 Recommended Ferrite Beads Application Note PDF 121 KB
PCNs & PDNs
PDN# : CQ-17-04(R1) Product Discontinuance Notice Product Discontinuation Notice PDF 606 KB
PDN# : CQ-17-04 Product Discontinuance Notice Product Discontinuation Notice PDF 599 KB
PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB
PCN# : TB1405-01 New Carrier Tape and Quantity per Reel Product Change Notice PDF 788 KB
PCN# : A1309-01 Changed of Traceability Mark Format Product Change Notice PDF 439 KB
Downloads
8524 IBIS Model Model - IBIS ZIP 45 KB
Other
Clock Distribution Overview 日本語 Overview PDF 217 KB
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB