General Description
The MAX3671 is a low-jitter frequency synthesizer that accepts two reference clock inputs and generates nine phase-aligned outputs. The device features 40kHz jitter transfer bandwidth, 0.3psRMS (12kHz to 20MHz) integrated phase jitter, and best-in-class power-supply noise rejection (PSNR), making it ideal for jitter cleanup, frequency translation, and clock distribution in Gigabit Ethernet applications.

Features
♦ Two Reference Clock Inputs: LVPECL
♦ Nine Phase-Aligned Clock Outputs: LVPECL
♦ Input Frequencies: 62.5MHz,125MHz, 250MHz, 312.5MHz
♦ Output Frequencies: 62.5MHz, 125MHz, 156.25MHz, 250MHz, 312.5MHz
♦ Low-Jitter Generation: 0.3psRMS (12kHz to 20MHz)
♦ Clock Failure Indicator for Both Reference Clocks
♦ External Feedback Provides Zero-Delay Capability
♦ Low Output Skew: 20ps Typical

Applications
    Gigabit Ethernet Routers and Switches
    Frequency Translation
    Jitter Cleanup
    Clock Distribution