The 83905 is a low skew, 1-to-6 LVCMOS / LVTTL Fanout Buffer. The low impedance LVCMOS/LVTTL outputs are designed to drive 50Ω series or parallel terminated transmission lines. The effective fanout can be increased from 6 to 12 by utilizing the ability of the outputs to drive two series terminated lines. The 83905 is characterized at full 3.3V, 2.5V, and 1.8V, mixed 3.3V/2.5V, 3.3V/1.8V and 2.5V/1.8V output operating supply mode. Guaranteed output and part-to-part skew characteristics along with the 1.8V output capabilities makes the 83905 ideal for high performance, single ended applications that also require a limited output voltage.

Features

  • Six LVCMOS / LVTTL outputs
  • Outputs able to drive 12 series terminated lines
  • Crystal Oscillator Interface
  • Crystal input frequency range: 10MHz to 40MHz
  • Output skew: 80ps (maximum)
  • RMS phase jitter @ 25MHz, (100Hz – 1MHz): 0.26ps (typical), VDD = VDDO = 2.5V
    Offset                  Noise Power
    100Hz.................-129.7 dBc/Hz
    1kHz...................-144.4 dBc/Hz
    10kHz.................-147.3 dBc/Hz
    100kHz...............-157.3 dBc/Hz
  • 5V tolerant enable inputs
  • Synchronous output enables
  • Operating power supply modes:
    Full 3.3V, 2.5V, 1.8V
    Mixed 3.3V core/2.5V output operating supply
    Mixed 3.3V core/1.8V output operating supply
    Mixed 2.5V core/1.8V output operating supply
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
83905AGLF Active PGG16 TSSOP 16 C Yes Tube
Availability
83905AGLFT Active PGG16 TSSOP 16 C Yes Reel
Availability
83905AKLF Active NLG20P1 VFQFPN 20 C Yes Tube
Availability
83905AKLFT Active NLG20P1 VFQFPN 20 C Yes Reel
Availability
83905AMLF Active DCG16 SOIC 16 C Yes Tube
Availability
83905AMLFT Active DCG16 SOIC 16 C Yes Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
83905 Datasheet Datasheet PDF 488 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-845 Termination - LVCMOS Application Note PDF 62 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB
AN-815 Understanding Jitter Units Application Note PDF 476 KB
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB
PCNs & PDNs
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB
PCN# : TB1403-01 Changed in Carrier Tape, Plastic Reel and Quantity per Reel on TSSOP-14, TSSOP-16 Product Change Notice PDF 663 KB
PDN# : N-12-22R2 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 363 KB
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB
PDN# : N-12-22R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 209 KB
Other
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB

Software & Tools

Title Other Languages Type Format File Size Date
83905 IBIS Model Model - IBIS ZIP 93 KB