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MAX3622
Low-Jitter, Precision Clock Generator with Two Outputs

0.14ps Ultra-Low Jitter Clock Generator Eliminates 156.25MHz Crystal Oscillator Module


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 208kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail
The MAX3622 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 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 MAX3622 has one LVPECL output and one LVCMOS output. It is available in a 16-pin TSSOP package and operates over the 0°C to +70°C temperature range.

An evaluation kit is available:  MAX3622EVKIT  

Key Features   Applications/Uses
  • Crystal Oscillator Interface: 25MHz Typical
  • Output Frequencies: 125MHz and 156.25MHz
  • 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

Key Specifications:  Clock Generators
Part Number Applications fIN
(MHz)
fIN
(MHz)
fOUT
(MHz)
fOUT
(MHz)
Fixed or Continuous Frequency Output Levels Out-
puts
PLLs Spread Spectrum Output Jitter
(ps)
VSUPPLY
(V)
Package/Pins
min max min max RMS
MAX3622  Ethernet 25 25 125 156.25 Fixed
LVCMOS
LVPECL
2 1 No 0.14 3.3
TSSOP/16
See All Clock Generators (25)

Diagram
MAX3622: Block Diagram
Block Diagram

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    Document Ref.: 19-2456; Rev 0; 2007-12-18
    This page last modified: 2009-08-26


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