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MAX3625
Low-Jitter, Precision Clock Generator with Three Outputs

0.14ps Jitter Enables Easy System Clocking


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Description
FULL DATA SHEET (PDF, 368kB)
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The MAX3625 is a low-jitter precision clock generator optimized for networking applications. The device integrates a crystal oscillator and a phase-locked loop (PLL) clock multiplier to generate high-frequency clock outputs for Ethernet, 10G Fibre Channel, and other networking applications.

Maxim's proprietary PLL design features ultra-low jitter and excellent power-supply noise rejection, minimizing design risk for network equipment.

The MAX3625 has three LVPECL outputs. Selectable output dividers and a selectable feedback divider allow a range of output frequencies.

Key Features   Applications/Uses
  • Crystal Oscillator Interface: 24.8MHz to 27MHz
  • CMOS Input: Up to 320MHz
  • Output Frequencies
    • Ethernet: 125MHz, 156.25MHz, 312.5MHz
    • 10G Fibre Channel: 159.375MHz, 318.75MHz
  • Low Jitter
    • 0.14psRMS (1.875MHz to 20MHz)
    • 0.38psRMS (12kHz to 20MHz)
  • Excellent Power-Supply Noise Rejection
  • No External Loop Filter Capacitor Required

 
  • Ethernet Networking Equipment
  • Fibre Channel Storage Area Network

    Key Specifications:   Clock Generators
    Part Number Applications fIN (min) (MHz) fIN (max) (MHz) fOUT (min) (MHz) fOUT (max) (MHz) Fixed or Continuous Frequency Output Levels Number of Outputs Number of PLLs Programmability Spread Spectrum Output Jitter (RMS) Supply Voltage (V) Package Price**
    MAX3625 
    Ethernet
    Fibre Channel
    SONET/SDH
    24.8 27 156.25 312.5 Fixed LVPECL 3 1 Pin No 0.14 3.3 TSSOP/24 $9.13 @ 1k
    See All Clock Generators (23)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

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    Document Ref.: 19-1010; Rev 0; 2007-10-23
    This page last modified: 2008-08-29



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