ZL40234LDG1

Overview

The ZL40234LDG1 is a clock fanout buffer from Microchip Technology, housed in a 32-pin VQFN package. It provides three inputs and five outputs, supporting LVPECL, LVDS, and HCSL signal types. The device operates within a supply voltage range of 1.35 V to 3.465 V and functions across an industrial temperature range of -40°C to +85°C. It supports maximum input frequencies up to 1.6 GHz with a maximum propagation delay of 2.77 ns.

Feature Summary

• Provides low skew and low additive jitter performance for precise clock distribution.
• Supports multiple output logic standards including LVPECL, LVDS, and HCSL.
• Integrates with miClockSynth synthesizers to establish simplified clock trees.

Applications

• High-speed data acquisition systems
• Telecommunications infrastructure equipment
• Test and measurement instrumentation

Procurement Notes

Verify the specific suffix 'LDG1' against the manufacturer's current datasheet to confirm pinout and electrical characteristics match design requirements. Ensure compliance with RoHS directives as indicated by the component marking. Confirm that the VQFN-32 package dimensions align with the PCB footprint specifications used in the assembly process.

Selection Notes

Select this component when a multi-output buffer is required to drive mixed-signal loads with varying voltage levels. The availability of LVPECL, LVDS, and HCSL outputs allows for flexible interface matching without additional level shifters. Consider the 1.6 GHz frequency capability and low jitter specifications for high-performance timing applications.

Part Context

This part belongs to the ZL402x series of clock buffers, which are categorized into miClock and miSmart families. These devices are designed to complement Microchip's miClockSynth programmable synthesizers, offering a complete solution for generating and distributing clock signals in complex electronic systems requiring high reliability.

Replacement Considerations

The ZL40235LDG1 is a documented substitute within the same family, offering six outputs instead of five. Both components share similar packaging and operational parameters, allowing for potential interchangeability if the additional output channel is acceptable for the design.