2:1 Differential-to-3.3V Dual LVPECL/ECL Clock Multiplexer

The 85356I is a dual 2:1 Differential-to-LVPECL Multiplexer. The device has both common select and individual select inputs. When COM_SEL is logic High, the CLKxx input pairs will be passed to the output. When COM_SEL is logic Low, the output is determined by the setting of the SEL0 pin for channel 0 and the SEL1 pin for Channel 1. The differential input has a common mode range that can accept most differential input types such as LVPECL, LVDS, LVHSTL, SSTL, and HCSL. The 85356I can therefore be used as a differential translator to translate almost any differential input type to LVPECL. It can also be used in ECL mode by setting VCC = 0V and VEE to -3.0V to - 3.8V. The 85356I adds negligible jitter to the input clock and can operate at high frequencies in excess of 900MHz thus making it ideal for use in demanding applications such as SONET, Fibre Channel, 1 Gigabit/10 Gigabit Ethernet.

Features

  • High speed differential muliplexer. The device can be configured as a 2:1 multiplexer
  • Dual 3.3V LVPECL outputs
  • Selectable differential CLKx/nCLKx input pairs
  • Differential CLKx/nCLKx pairs can accept the following interface levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL
  • Output frequency: 900MHz (typical)
  • Translates any single-ended input signal to 3.3V LVPECL levels with resistor bias on nCLKx input
  • Output skew: 75ps (typical)
  • Propagation delay: 1.15ns (typical)
  • LVPECL mode operating voltage supply range: VCC = 3V to 3.8V, VEE = 0V
  • ECL mode operating voltage supply range: VCC = 0V, VEE = -3V to -3.8V
  • -40°C to 85°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
85356AGILF Active PGG20 TSSOP 20 I Yes Tube Availability
85356AGILFT Active PGG20 TSSOP 20 I Yes Reel Availability
85356AMILF Active PSG20 SOIC 20 I Yes Tube Availability
85356AMILFT Active PSG20 SOIC 20 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
85356I Datasheet Datasheet PDF 605 KB Jan 5, 2015
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB May 10, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 23, 2014
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 12, 2014
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 11, 2014
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 7, 2014
AN-839 RMS Phase Jitter Application Note PDF 149 KB May 6, 2014
AN-838 Peak-to-Peak Jitter Calculations Application Note PDF 32 KB May 6, 2014
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 KB May 5, 2014
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 5, 2014
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 94 KB May 5, 2014
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 23, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 14, 2014
PCNs & PDNs
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 13, 2016
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 14, 2016
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 27, 2016
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 12, 2015
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 21, 2015
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 20, 2015
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 23, 2013
Other
The IDT Consumer Products Advantage Overview PDF 4.01 MB Jun 30, 2017
The IDT Automotive Advantage Overview PDF 3.55 MB May 26, 2017
The IDT Communications Products Advantage Overview PDF 2.54 MB Feb 13, 2017
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016

Software & Tools

Title Other Languages Type Format File Size Date
85356I IBIS Model Model - IBIS ZIP 35 KB Dec 9, 2009

News & Additional Resources