General Description
The MAX3679A is a low-jitter precision clock generator with the integration of three LVPECL and one LVCMOS outputs optimized for Ethernet applications. The device integrates a crystal oscillator and a phase-locked loop (PLL) clock multiplier to generate high-frequency clock outputs for Ethernet applications.

Features
♦ Crystal Oscillator Interface: 25MHz
♦ CMOS Input: 25MHz
♦ Output Frequencies for Ethernet
    62.5MHz, 125MHz, 156.25MHz, 312.5MHz
♦ Low Jitter
    0.14psRMS (1.875MHz to 20MHz)
    0.36psRMS (12kHz to 20MHz)
♦ Excellent Power-Supply Noise Rejection
♦ No External Loop Filter Capacitor Required

Applications
    Ethernet Networking Equipment