9QXL2001CNHGI

Overview

The Renesas 9QXL2001C is a 1:20 differential fanout buffer designed for PCIe Gen5, Gen6, and UPI applications. It features ultra-low additive phase jitter of 6fs RMS at PCIe Gen5 and 4fs RMS at PCIe Gen6. The device operates with an HCSL input and LP-HCSL outputs, supporting frequencies up to 400MHz. Powered by a 3.3V supply (2.97V–3.63V), it utilizes an 80-GQFN package measuring 6x6mm. Key performance metrics include output-to-output skew under 50ps and typical propagation delay of 1.4ns.

Feature Summary

• Ultra-low additive phase jitter: 6fs RMS (PCIe Gen5) and 4fs RMS (PCIe Gen6).
• LP-HCSL outputs eliminate 80 external resistors, saving approximately 130mm² of board area.
• Hardware control via 8 OE# pins; software control via SMBus or 25MHz Side-Band Interface.
• Spread spectrum compatible and supports Common Clocked (CC) and Independent Reference (IR) architectures.

Applications

• Servers and High-Performance Computing
• Storage Systems
• Networking Equipment
• Accelerators

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and configuration options. Confirm that the selected variant meets the required thermal resistance specifications for the intended application environment.

Selection Notes

Select this component for designs requiring low jitter distribution for PCIe Gen5/Gen6 or UPI interfaces. Ensure the PCB layout accommodates the 80-GQFN package dimensions and provides adequate grounding for the exposed pad to maintain thermal performance.

Part Context

The 9QXL2001C serves as an enhanced-performance successor to the 9QXL2001B within the DB2000QL family. It offers improved phase jitter characteristics and reduced propagation delay compared to its predecessor, making it suitable for next-generation high-speed interconnects.

Replacement Considerations

The 9QXL2001B is a previous generation part in the same family. While pin-compatible, it exhibits higher jitter and longer propagation delay. Verify system timing budgets before substituting older variants.

FAQ

What is the maximum operating temperature?

The device supports an industrial operating temperature range from -40°C to +105°C.

How are the outputs controlled?

Outputs can be controlled via hardware using 8 dedicated OE# pins, through the SMBus interface, or via the 25MHz Side-Band Interface.

Does the device support spread spectrum clocking?

Yes, the 9QXL2001C is spread spectrum compatible and tracks spreading input clocks for EMI reduction.