ZL40203LDF1

Overview

The ZL40203LDF1 is a single-channel fanout buffer manufactured by Microchip Technology, designed for high-frequency clock distribution. It accepts one differential input and provides four differential LVPECL outputs, operating at a maximum frequency of 750 MHz. The device supports multiple input formats including CML, HCSL, LVCMOS, LVDS, and LVPECL. It functions within a supply voltage range of 2.375 V to 3.465 V and operates across an industrial temperature range of -40°C to +85°C. The component is housed in a 16-VFQFN package with exposed pad, measuring 3x3 mm, suitable for surface-mount applications.

Feature Summary

• Single-input, four-output (1:4) fanout buffer architecture
• Maximum operating frequency of 750 MHz
• Supports CML, HCSL, LVCMOS, LVDS, and LVPECL input signals
• Differential LVPECL output configuration

Applications

• High-speed data acquisition systems requiring precise clock distribution
• Telecommunications infrastructure equipment
• Test and measurement instruments
• Industrial automation control units

Procurement Notes

Verify the specific suffix 'LDF1' against the official Microchip datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure the ordering quantity aligns with the manufacturer's standard packaging specifications, typically provided in tape-and-reel formats for this package type. Confirm RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select the ZL40203LDF1 when a single source signal must be distributed to four distinct LVPECL loads with minimal skew. Verify that the system power supply can maintain the required 2.375 V to 3.465 V range under all load conditions. Consider the 16-VFQFN thermal performance if the ambient temperature approaches the upper limit of the specified operating range.

Part Context

This component belongs to the ZL40203 series of miSmartBuffer devices from Microchip Technology. These buffers are engineered for low-jitter clock distribution in complex digital systems. The LDF1 suffix denotes the specific 16-lead QFN package variant, distinguishing it from other package options or pin configurations within the same functional family.

Replacement Considerations

Consult the Microchip product selection guide for direct replacements within the ZL402xx series. Verify compatibility with existing PCB footprints and signal integrity requirements before substituting with other fanout buffers.