ZL30704LDG6

Overview

The ZL30704LDG6 is a discontinued Ethernet clock synthesizer integrated circuit manufactured by Microchip Technology. It features four outputs and utilizes a Phase-Locked Loop (PLL) architecture to generate precise timing signals. The device supports differential input and output configurations, accepting CML, HCSL, LVDS, or LVPECL inputs and providing CML or LVCMOS outputs. It is housed in a 100-aQFN package measuring 10x10 mm with an exposed pad for thermal management. The component operates within a temperature range of -40°C to 85°C and complies with RoHS3 standards.

Feature Summary

• Supports differential input and output signal formats for high-speed data transmission integrity
• Integrates a programmable PLL for flexible frequency synthesis tailored to Ethernet applications
• Designed specifically for Ethernet timing requirements with multiple output drive options

Applications

• Ethernet network infrastructure equipment
• Telecommunications base stations
• High-speed data communication systems requiring precise clock distribution

Procurement Notes

This part number is officially obsolete and no longer in production. Verification of availability should focus on the recommended replacement, ZL30732LDG1. Buyers must confirm that the substitute component meets all original electrical and mechanical specifications before integration into existing designs.

Selection Notes

Designers should evaluate the ZL30732LDG1 as the primary alternative due to its manufacturer recommendation. Selection criteria must include compatibility with existing board layouts, pin assignments, and software configuration tools. Verify that the replacement supports the required input/output voltage levels and frequency ranges specified in the original system design.

Part Context

The ZL30704LDG6 belongs to the ZL3070y series of clock synthesizers optimized for networking applications. This family is characterized by low jitter performance and flexible programming options. The specific LDG6 suffix indicates a lead-free, halogen-free package compliant with environmental directives. The component was widely used in gigabit and ten-gigabit Ethernet interfaces.

Replacement Considerations

Microchip recommends the ZL30732LDG1 as the direct substitute. Engineers must verify functional equivalence regarding output frequencies and jitter specifications. Package dimensions and pinout compatibility should be confirmed to ensure seamless retrofitting without PCB redesign.