ZL40252LDF1

Overview

The ZL40252LDF1 is a programmable clock fanout buffer and synthesizer from Microchip Technology's SmartBuffer series. It features a 4:10 input-to-output ratio, supporting maximum frequencies up to 1.035 GHz. The device accepts CMOS or crystal inputs and provides versatile output formats including CML, CMOS, HCSL, HSTL, LVDS, LVPECL, and SSTL. Powered by a single supply voltage ranging from 1.71 V to 3.465 V, it operates within a commercial temperature range of -40°C to +85°C. The component is housed in a 56-VFQFN package with an exposed pad.

Feature Summary

• Programmable 4:10 input-to-output ratio for flexible clock distribution
• Supports multiple output standards: CML, CMOS, HCSL, HSTL, LVDS, LVPECL, SSTL
• Maximum operating frequency of 1.035 GHz
• Single supply voltage operation from 1.71 V to 3.465 V

Applications

• High-speed data converter clocking systems
• Telecommunications infrastructure synchronization
• Industrial automation control networks

Selection Notes

Select the ZL40252LDF1 when a high-density 4:10 clock distribution solution is required with mixed output voltage levels. Verify that the system power rail falls within the 1.71 V to 3.465 V range. Ensure the PCB layout accommodates the 56-VFQFN package dimensions (8x8 mm) and provides adequate thermal relief for the exposed pad.

Part Context

This component belongs to the SmartBuffer family, which integrates programmable logic into clock buffers to reduce component count. Unlike fixed-ratio buffers, this part allows configuration of output enable states and drive strengths. It serves as a direct replacement for discrete buffer arrays in complex timing architectures requiring signal integrity optimization across diverse logic families.