Overview

The 831721I is a high-performance, differential HCSL clock/data multiplexer and fanout buffer. The device is designed for the multiplexing of high-frequency clock and data signals. The device has two differential, selectable clock/data inputs. The selected input signal is output at one differential HCSL output. Each input pair accepts HCSL, LVDS, and LVPECL levels. The 831721I is characterized to operate from a 3.3V power supply. Guaranteed input, output-to-output and part-to-part skew characteristics make the 831721I ideal for those clock and data distribution applications demanding well-defined performance and repeatability. The 831721I supports the clock multiplexing and distribution of PCI Express Generation 1, 2 and 3 clock signals.

831721I - Block Diagram
831721I - Pinout
831721I - Block Diagram
831721I - Pinout
  • 2:1 differential clock/data multiplexer with fanout
  • Two selectable, differential inputs
  • Each differential input pair can accept the following levels: HCSL, LVHSTL, LVDS and LVPECL
  • One differential HCSL output
  • Maximum input/output clock frequency: 700MHz (maximum)
  • Maximum input/output data rate: 1400Mb/s (NRZ)LVCMOS interface levels for all control inputs
  • Input skew: 55ps (maximum)
  • Part-to-part skew: 400ps (maximum)
  • Full 3.3V supply voltage
  • Available in lead-free (RoHS 6) 16 TSSOP package
  • -40°C to 85°C ambient operating temperature

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    831721AGILF
    circleObsolete
    memory
    view_in_ar
    		TSSOP 16 I Yes Tube
    831721AGILFT
    circleObsolete
    memory
    view_in_ar
    		TSSOP 16 I Yes Reel
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