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5T93GL16 - Block Diagram
5T93GL16 - Pinout


2.5V LVDS,1:16 Glitchless Clock Buffer Terabuffer™ II

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

The 5T93GL16 2.5V differential clock buffer is a user-selectable differential input to sixteen LVDS outputs. The fanout from a differential input to sixteen LVDS outputs reduces loading on the preceding driver and provides an efficient clock distribution network. The 5T93GL16 can act as a translator from a differential HSTL, eHSTL, LVEPECL (2.5V), LVPECL (3.3V), CML, or LVDS input to LVDS outputs. A single-ended 3.3V / 2.5V LVTTL input can also be used to translate to LVDS outputs. The redundant input capability allows for a glitchless change-over from a primary clock source to a secondary clock source. Selectable inputs are controlled by SEL. During the switchover, the output will disable low for up to three clock cycles of the previously-selected input clock. The outputs will remain low for up to three clock cycles of the newly-selected clock, after which the outputs will start from the newly-selected input. A FSEL pin has been implemented to control the switchover in cases where a clock source is absent or is driven to DC levels below the minimum specifications. The 5T93GL16 outputs can be asynchronously enabled/disabled. When disabled, the outputs will drive to the value selected by the GL pin. Multiple power and grounds reduce noise.


  • Guaranteed low skew: <25ps (maximum)
  • Very low duty cycle distortion: <100ps (maximum)
  • High speed propagation delay: <2ns (maximum)
  • Up to 650MHz operation
  • Glitchless input clock switching
  • Selectable inputs
  • Hot insertable and over-voltage tolerant inputs
  • 3.3V/2.5V LVTTL, HSTL, eHSTL, LVEPECL (2.5V), LVPECL (3.3V), CML or LVDS input interfaces
  • Selectable differential inputs to sixteen LVDS outputs
  • Power-down mode
  • At power-up, FSEL should be LOW
  • 2.5V VDD
  • -40°C to 85°C ambient operating temperature
  • Available in VFQFPN package

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)
16LVDS0.000000 - 650.0000000.000000 - 650.0000002LVPECL, LVCMOS, LVDS, HSTL, CML22.525

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
5T93GL16NLGIObsoleteNLG52VFQFPN52IYesTrayCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Apps Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 13, 2014
AN-846 Termination - LVDS Application Note PDF 50 KB May 13, 2014
show all (12)
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB May 6, 2014
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 KB May 6, 2014
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 6, 2014
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 94 KB May 6, 2014
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 24, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 24, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
PCN# : A1403-03 Gold wire to Copper wire Product Change Notice PDF 42 KB Oct 15, 2014
PDN# : CQ-14-01 (R1) PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 539 KB Sep 3, 2014
PDN# : CQ-14-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 538 KB Jan 26, 2014
show all (7)
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB Dec 14, 2004
PCN#: L-0405-04 To comply with current EIA Std Product Change Notice PDF 143 KB May 18, 2004
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 10, 2003
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 25, 2016