MAX3624UTJ2

Overview

The MAX3624UTJ2T is a low-jitter, precision clock generator optimized for networking applications. It 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. The device features ultra-low jitter of 0.36ps RMS and excellent power-supply noise rejection. It operates with a supply voltage of 3V to 3.6V and supports LVCMOS or Crystal inputs with LVCMOS or LVPECL outputs. The maximum frequency is 318.5MHz, housed in a 32-TQFN package.

Feature Summary

• Integrates crystal oscillator and PLL clock multiplier
• Ultra-low jitter performance: 0.36ps RMS
• Excellent power-supply noise rejection
• Supports Ethernet, Fibre Channel, and SONET/SDH applications

Applications

• Ethernet networking equipment
• Fibre Channel systems
• SONET/SDH infrastructure

Procurement Notes

Verify the specific suffix 'UTJ2' against official Microchip documentation to confirm operating temperature range and package details, as local data indicates 0°C to 85°C while standard variants may differ. Ensure the ordering code matches the exact reel quantity and tape specification required for surface mount assembly processes.

Selection Notes

Select this component when designing networking hardware requiring precise clock generation with minimal jitter. The integrated PLL and crystal oscillator simplify design by reducing external component count. Verify that the input clock source compatibility (LVCMOS/Crystal) and output drive requirements (LVCMOS/LVPECL) align with the target system architecture.

Part Context

This part belongs to the MAX3624 family of clock generators. The 'MAX3624A' designation typically refers to the broader product line, while specific suffixes like 'UTJ2' denote variations in temperature grade and packaging. Microchip Technology acquired Maxim Integrated, which originally developed this series, ensuring continued support and documentation availability through their official channels.

Replacement Considerations

Direct replacements include other parts from the MAX3624 family such as MAX3624AETJ2T, provided the temperature range and pinout are compatible. Cross-reference with similar low-jitter clock generators from other manufacturers only if electrical parameters and package dimensions are identical.