ZL40214LDG1

Overview

The ZL40214LDG1 is a precision 1:4 LVDS fanout buffer manufactured by Microchip Technology. It accepts differential or single-ended inputs and provides four identical LVDS outputs capable of operating at frequencies up to 750 MHz. The device supports 2.5 V or 3.3 V power supplies via an internal LDO regulator, consuming 61 mA. Key performance metrics include an ultra-low additive jitter of 92 fs RMS at 750 MHz, input-to-output propagation delay of 2 ns maximum, and output-to-output skew of 100 ps typical. It operates within the industrial temperature range of -40°C to +85°C.

Feature Summary

• Accepts LVPECL, LVDS, CML, HCSL, and single-ended inputs with flexible termination options
• Provides four identical LVDS outputs with low signal swing for reduced power consumption
• Features an on-chip LDO regulator and bulk capacitors for superior power supply noise rejection
• Ultra-low additive jitter ranging from 91 fs to 134 fs RMS depending on frequency

Applications

• General purpose clock distribution
• Low jitter clock trees
• Logic translation
• Clock and data signal restoration
• PCI Express generation 1/2/3 clock distribution

Procurement Notes

Verify the ordering suffix matches the required packaging format. The ZL40214LDG1 variant is supplied in trays, while the ZL40214LDF1 variant uses tape and reel. Confirm that the selected package aligns with the assembly process requirements before procurement.

Selection Notes

Select this component when a 1:4 fanout ratio with LVDS outputs is required. Ensure the design accommodates the external termination networks specified for the chosen input protocol (LVPECL, LVDS, CML, etc.). Verify that the power supply filtering meets the decoupling recommendations to maintain optimal jitter performance.

Part Context

The ZL40214 belongs to the ZL402x family of clock fanout buffers. This series includes variants with different output ratios and interface types, such as LVPECL or mixed-mode outputs. The ZL40214 specifically focuses on providing four LVDS outputs for applications requiring precise timing distribution.

Replacement Considerations

The datasheet notes a pin-compatible device with internal termination is available. However, specific part numbers for direct replacements are not listed in the provided documentation. Evaluate alternative ZL402x models based on required fanout ratios and output interface compatibility.