Overview

The 843002-01 is a 2 output LVPECL synthesizer optimized to generate Ethernet reference clock frequencies. Using a 25MHz 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL[1:0]): 156.25MHz, 125MHz, and 62.5MHz. The 843002-01 uses ICS' 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Ethernet jitter requirements. The 843002-01 is packaged in a small 20-pin TSSOP package.

843002-01 - Block Diagram
843002-01 - Pinout
843002-01 - Block Diagram
843002-01 - Pinout
  • Two 3.3V LVPECL outputs
  • Selectable crystal oscillator interface or LVCMOS single-ended input
  • Supports the following input frequencies:
    156.25MHz, 125MHz and 62.5MHz
  • VCO range: 560MHz - 680MHz
  • RMS phase jitter @ 156.25MHz, using a 25MHz crystal (1.875MHz-20MHz): 0.54ps (typical)
  • Typical phase noise at 156.25MHz
    Phase noise:
    Offset                  Noise Power
    100Hz ............... -97.3 dBc/Hz
    1KHz ..............-119.1 dBc/Hz
    10KHz ..............-126.4 dBc/Hz
    100KHz ..............-127.6 dBc/Hz
  • Full 3.3V supply mode
  • Lead-Free package fully RoHS compliant
  • -30°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
    843002AG-01LF
    circleObsolete
    memory
    view_in_ar
    		TSSOP 20 C Yes Tube
    843002AG-01LFT
    circleObsolete
    memory
    view_in_ar
    		TSSOP 20 C Yes Reel
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