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83908-02 - Block Diagram
83908-02 - Pinout

83908-02

Low Skew,1-to-8 Crystal-to-LVCMOS Fanout Buffer

The 83908-02 is a low skew, high performance 1-to-8 Crystal Oscillator//Crystal-to-LVCMOS fanout buffer. The 83908-02 has selectable single-ended clock or two crystal-oscillator inputs. There is an output enable to disable the outputs by placing them into a high-impedance state.

Guaranteed output and part-to-part skew characteristics make the 83908-02 ideal for those applications demanding well defined performance and repeatability.

Features

  • Eight LVCMOS / LVTTL outputs, 19 typical output impedance at VDD = VDDO = 3.3V
  • Two crystal oscillator input pairs
    One LVCMOS / LVTTL clock input
  • Crystal input frequency range: 10MHz – 40MHz
  • Output frequency: 200MHz (maximum)
  • Output skew: 70ps (maximum) at VDD = VDDO = 3.3V
  • Part-to-part skew: 700ps (maximum) at VDD = VDDO = 3.3V
  • RMS phase jitter @ 25MHz output, using a 25MHz crystal,
    (12kHz – 10MHz): 0.39ps (typical) at VDD = VDDO = 3.3V
  • RMS phase noise at 25MHz
    Offset                         Noise Power
      100Hz …………….. -111.4 dBc/Hz
        1kHz …………….. -139.9 dBc/Hz
      10kHz……………… -157.3 dBc/Hz
    100kHz …………….. -157.5 dBc/Hz
  • Power Supply Voltage Modes:
    Core / Output
    3.3V / 3.3V
    3.3V / 2.5V
    3.3V / 1.8V
    2.5V / 2.5V
    2.5V / 1.8V
  • 0°C to 70°C ambient operating temperature
  • Lead-free (RoHS 6) packaging​

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Input Freq (MHz)Inputs (#)Input TypeOutput Banks (#)Core Voltage (V)Output Skew (ps)Additive Phase Jitter Typ RMS (ps)
8LVCMOS0.000000 - 200.0000000.000000 - 200.0000003LVCMOS, Crystal12.5, 3.3700.37

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
83908AG-02LFActivePGG24TSSOP24CYesTubeCheck Availability
83908AG-02LFTActivePGG24TSSOP24CYesReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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83908-02 Final Data Sheet Datasheet PDF 331 KB Apr 8, 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-845 Termination - LVCMOS Application Note PDF 62 KB May 13, 2014
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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
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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-834 Hot-Swap Recommendations Application Note PDF 67 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-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# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 14, 2016
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PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 15, 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
show all (8)
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PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 13, 2015
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PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 22, 2015
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PCN# : TB1503-01R1 Carrier Tape Standardization for Selective Packages Product Change Notice PDF 333 KB Oct 22, 2015
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PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 21, 2015
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PCN# : TB1503-01 Carrier Tape Standardization for Selective Packages Product Change Notice PDF 291 KB Jul 21, 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
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IDT Fanout Buffers Product Overview Product Brief PDF 739 KB Feb 17, 2015
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High-Performance, Low-Phase Noise Clocks Buffers product brief Product Brief PDF 378 KB Aug 14, 2012