9ZXL0831EKKLFT

Overview

The 9ZXL0831EKKLFT is an 8-output low-power clock buffer from Renesas Electronics, designed for Intel DB800ZL specifications. It operates with a single 3.3V supply (3.135V to 3.465V) and supports frequencies up to 400MHz. The device features one differential HCSL input and eight differential LP-HCSL outputs in a 48-VFQFPN (6x6mm) package. It includes a PLL for jitter reduction and spread spectrum compatibility, targeting PCIe Gen 1-5 and QPI/UPI applications.

Feature Summary

• Eight differential LP-HCSL outputs eliminate external termination resistors, saving board space.
• Fixed external feedback path maintains low drift for critical QPI/UPI applications.
• Spread spectrum compatible; tracks spreading input clock for EMI reduction.
• Selectable PLL bandwidth minimizes jitter peaking in cascaded PLL topologies.

Applications

• Servers and High-performance Computing
• NVMe Storage Systems
• Networking Accelerators

Procurement Notes

Verify the suffix EKKLFT corresponds to the Tape & Reel (TR) packaging configuration. Confirm the operating temperature range of -40°C to 85°C matches system requirements. Ensure the 48-VFQFPN footprint aligns with PCB layout guidelines. Check current availability status as supply constraints may affect order fulfillment.

Selection Notes

Select this component for designs requiring pin-compatible upgrades to the 9ZXL0831A with improved phase jitter performance. It is suitable for applications needing hardware control of individual outputs via eight OE# pins. Consider the typical power consumption of 304mW for thermal management planning.

Part Context

This part belongs to the second-generation enhanced performance DB800ZL differential buffer family. It serves as a direct upgrade to the 9ZXL0831A, offering superior timing characteristics while maintaining pin compatibility within the 9ZXL08x1 series.

Replacement Considerations

The 9ZXL0831A is a previous generation alternative. For higher output counts, consider the 9ZXL0851E or 9ZXL1231 series, which offer similar DB800ZL compliance with different channel configurations.