The 831742I is a high-performance, differential HCSL clock/data multiplexer and fanout buffer. The device is designed for the multiplexing and fanout of high-frequency clock and data signals. The device has four differential, selectable clock/data inputs. The selected input signal is distributed to two low-skew differential HCSL outputs. Each input pair accepts HCSL, LVDS, LVPECL and SSTL levels. The 831742I is characterized to operate from a 3.3V power supply. Guaranteed input, output-to-output and part-to-part skew characteristics make the 831742I ideal for those clock and data distribution applications demanding well-defined performance and repeatability. The 831742I supports the clock multiplexing and distribution of PCI Express (2.5 Gb/s) and Gen 2 (5 Gb/s) clock signals. 

Features

  • 4:1 differential clock/data multiplexer with fanout
  • Four selectable, differential input pairs
  • Each differential input pair can accept the following levels: HCSL, LVDS, LVPECL and SSTL
  • Two differential HCSL output pairs
  • Maximum input/output clock frequency: 700MHz
  • Maximum input/output data rate: 1400Mb/s (NRZ)
  • LVCMOS interface levels for all control inputs
  • PCI Express (2.5Gb/s) and Gen 2 (5 Gb/s) clock jitter compliant
  • Input skew: 110ps max
  • Part-to-part skew: 225ps max
  • Full 3.3V supply voltage
  • Available in lead-free (RoHS 6)
  • -40°C to 85°C ambient operating temperature

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
831742AGILF Last Time Buy PGG24 TSSOP 24 I Yes Tube
Availability
831742AGILFT Last Time Buy PGG24 TSSOP 24 I Yes Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
831742I Datasheet Datasheet PDF 520 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 94 KB
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 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
PDN# : CQ-19-01 Quarterly Market Declined PDN Product Discontinuation Notice PDF 537 KB
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# : TB1503-01R1 Carrier Tape Standardization for Selective Packages Product Change Notice PDF 333 KB
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB
PCN# : TB1503-01 Carrier Tape Standardization for Selective Packages Product Change Notice PDF 291 KB
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 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
831742I 3v3 IBIS Model Model - IBIS ZIP 43 KB