Overview

The 843SDN is a Gigabit Ethernet Clock Generator and a member of the high performance devices from IDT. The 843SDN uses a 24MHz crystal to synthesize 120MHz. The 843SDN uses IDT's 3rd generation low phase noise VCO technology, and can achieve <1ps rms phase jitter performance over the 12kHz – 20MHz integration range. The 843SDN is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.

843SDN - Block Diagram
843SDN - Block Diagram
  • 1 differential 3.3V LVPECL output
  • Crystal oscillator interface designed for 23.2MHz – 30MHz, 18pF parallel resonant crystal
  • Output frequency range: 116MHz – 150MHz
  • VCO range: 580MHz – 750MHz
  • Output duty cycle range: 47% – 53%
  • RMS phase jitter @ 120MHz, using a 24MHz crystal (12kHz – 20MHz): 0.81ps (typical)
  • Full 3.3V supply mode
  • 0°C to 70°C ambient operating temperature
  • Industrial temperature information available upon request
  • Available in lead-free (RoHS 6) package

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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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    843SDNAGLF
    circleObsolete
    memory
    view_in_ar
    		TSSOP 8 C Yes Tube
    843SDNAGLFT
    circleObsolete
    memory
    view_in_ar
    		TSSOP 8 C Yes Reel
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