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MAX3624
Low-Jitter, Precision Clock Generator with Four Outputs

0.36ps Jitter and Excellent Power-Supply Noise Rejection


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Description
FULL DATA SHEET (PDF, 428kB)
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The MAX3624 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, Fibre Channel, SONET/SDH, and other networking applications.

Maxim's proprietary PLL design features ultra-low jitter (0.36psRMS) and excellent power-supply noise rejection, minimizing design risk for network equipment.

The MAX3624 has three LVPECL outputs and one LVCMOS output. Selectable output dividers and a selectable feedback divider allow a range of output frequencies.

Key Features   Applications/Uses
  • Crystal Oscillator Interface: 19.375MHz to 27MHz
  • CMOS Input: 19MHz to 40.5MHz
  • Output Frequencies
    • Ethernet: 62.5MHz, 125MHz, 156.25MHz, 312.5MHz
    • Fibre Channel: 106.25MHz, 159.375MHz, 212.5MHz, 318.5MHz
    • SONET/SDH: 77.76MHz, 155.52MHz, 311.04MHz
  • Low Jitter
    • 0.14psRMS (1.875MHz to 20MHz)
    • 0.36psRMS (12kHz to 20MHz)
  • Excellent Power-Supply Noise Rejection
  • No External Loop Filter Capacitor Required

 
  • Ethernet Networking Equipment
  • Fibre Channel Storage Area Network
  • SONET/SDH Network

    Key Specifications:   Clock Generators
    Part Number Nominal Input Reference (Crystal or CLK) (kHz) Input Reference Range (MHz) Output Frequencies (MHz) Output Type Number of Outputs Number of PLLs Programmability Output Jitter (ps) Output Skew (ps) Supply Voltage (V) RoHS Available Package Operating Temp. Range (°C) Price**
    MAX3624  25 18 to 40.5 106.25
    125
    155.52
    156.25
    212.5
    312.5
    62.5
    LVCMOS
    LVPECL
    4 1 Divider Ratio 0.14 (RMS) 5 3.0 to 3.6 Yes THIN QFN/32 0 to +85 $17.14 @ 1k
    See All Clock Generators (22)
    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.: 19-0977; Rev 01; 2007-11-29
    This page last modified: 2008-08-29



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