Overview

The 843003I-01 is a 3 differential output LVPECL Synthesizer designed to generate Ethernet reference clock frequencies and is a member of the family of high performance clock solutions from IDT. Using a 19.53125MHz or 25MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the settings of 4 frequency select pins (DIV_SEL[A1:A0], DIV_SEL[B1:B0]): 625MHz, 312.5MHz, 156.25MHz, and 125MHz. The 843003I-01 has 2 output banks, Bank A with 1 differential LVPECL output pair and Bank B with 2 differential LVPECL output pairs. The two banks have their own dedicated frequency select pins and can be independently set for the frequencies mentioned above. The 843003I-01 uses IDT's 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Ethernet jitter requirements. The 843003I-01 is packaged in a small 24-pin TSSOP package.

843003I-01 - Block Diagram
843003I-01 - Pinout
843003I-01 - Block Diagram
843003I-01 - Pinout
  • Three 3.3V LVPECL outputs on two banks, A Bank with one LVPECL pair and B Bank with two LVPECL output pairs
  • Using a 19.53125MHz or 25MHz crystal, the two output banks can be independently set for 625MHz, 312.5MHz, 156.25MHz or 125MHz
  • Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input
  • VCO range: 490MHz to 680MHz
  • RMS phase jitter @ 156.25MHz (1.875MHz - 20MHz): 0.53ps (typical)
  • 3.3V output supply mode
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free RoHS compliant package

Documentation

Design & Development

ECAD Models

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Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    843003AGI-01LF
    circleObsolete
    memory
    view_in_ar
    		TSSOP 24 I Yes Tube
    843003AGI-01LFT
    circleObsolete
    memory
    view_in_ar
    		TSSOP 24 I Yes Reel
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