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8T73S208A-01I

2.5V, 3.3V Differential LVPECL Clock Divider and Buffer

Alternative Products
NOTICE - The following device(s) are recommended alternatives:
The 8T73S208A-01 is a high-performance differential LVPECL clock divider and fanout buffer. The device is designed for the frequency division and signal fanout of high-frequency, low phase-noise clocks.The 8T73S208A-01 is characterized to operate from a 2.5V and 3.3V power supply. Guaranteed output-to-output and part-to-part skew characteristics make the 8T73S208A-01 ideal for those clock distribution applications demanding well-defined performance and repeatability. The integrated input termination resistors make interfacing to the reference source easy and reduce passive component count. Each output can be individually enabled or disabled in the high-impedance state controlled by a I2C register. On power-up, all outputs are disabled.
 

Features

  • One differential input reference clock
  • Differential pair can accept the following differential input
    levels: LVDS, LVPECLCML
  • Integrated input termination resistors
  • Eight LVPECL outputs
  • Selectable clock frequency division of ÷1, ÷2, ÷4 and ÷8
  • Maximum input clock frequency: 1GHz
  • LVCMOS interface levels for the control inputs
  • Individual output enable/disabled by I2C interface
  • Power-up state: all outputs disabled
  • Output skew: 60ps (maximum)
  • Output rise/fall times: 350ps (maximum)
  • Low additive phase jitter, RMS: 182fs (typical)
  • Full 2.5V and 3.3V supply voltages
  • Lead-free (RoHS 6) 32-Lead VFQFN packaging
  • -40°C to 85°C ambient operating temperature

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Input Freq (MHz)Inputs (#)Input TypeOutput Banks (#)Core Voltage (V)Output Voltage (V)Divider ValueOutput Skew (ps)Additive Phase Jitter Typ RMS (ps)
8LVPECL0.000000 - 500.000000, 0.000000 - 250.000000, 0.000000 - 125.000000, 0.000000 - 1000.0000000.000000 - 1000.0000001LVDS, LVPECL, CML12.5, 3.32.5, 3.31, 2, 4, 8600.182

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
8T73S208A-01NLGIActiveNLG32P3VFQFPN32IYesTrayCheck Availability
8T73S208A-01NLGI8ActiveNLG32P3VFQFPN32IYesReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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8T73S208A-01 Datasheet Datasheet PDF 432 KB May 24, 2016
Apps Notes & White Papers
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AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
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AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 13, 2014
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AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
show all (11)
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AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
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AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 KB May 6, 2014
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AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB May 6, 2014
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AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 6, 2014
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AN-833 Differential Input Self Oscillation Prevention Application Note PDF 94 KB May 6, 2014
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AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 24, 2014
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AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 24, 2014
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AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
PCNs & PDNs
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PCN# : N1605-01 Die Revision Change on 8T73S208A-01NLGI(8) Product Change Notice PDF 651 KB May 17, 2016
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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
show all (4)
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PCN# : N1508-01 Die revision change, 8T73S208-01NLGI (8) / 8T74S208-01NLGI (8) Product Change Notice PDF 761 KB Sep 20, 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