HXR14450-DNU

Overview

The HXR14450-DNU is a quad-channel transimpedance amplifier (TIA) receiver with an integrated clock and data recovery (CDR) unit. Designed for multi-gigabit serial links, it supports signaling rates up to 56 Gbps using PAM4 modulation. The device is intended for use in short-reach optical interconnects within hyper-scale data center applications. It functions as the receiver counterpart to the HXT14450 driver, enabling the creation of compact quad small form-factor pluggable (QSFP)-type modules.

Feature Summary

• Integrates a quad-channel TIA with a built-in CDR for high-speed signal processing
• Supports PAM4 modulation schemes for enhanced bandwidth efficiency
• Enables compact module designs through chipset integration with compatible drivers

Applications

• High-speed optical interconnects in data centers
• Quad small form-factor pluggable (QSFP) module construction
• Chip-to-module and chip-to-chip interconnects

Procurement Notes

Verify the specific suffix DNU against official Renesas documentation to confirm package type and tape/reel specifications. Ensure compatibility with the HXT14450 driver for complete link functionality. Confirm that the component meets the required environmental standards for your specific deployment scenario before finalizing procurement.

Selection Notes

Select this component when designing receivers for 56G PAM4 systems requiring integrated equalization and clock recovery. It is suitable for applications demanding high channel density and low power consumption in optical transceivers. Consider pairing it with the corresponding driver IC to simplify board layout and reduce overall system complexity.

Part Context

This part belongs to a chipset family designed for next-generation data center interconnects. It complements the HXT14450 linear VCSEL driver to provide a complete solution for short-reach optical links. The combination allows for cost-effective assembly while maintaining high performance standards required for modern high-bandwidth networking equipment.

Replacement Considerations

No verified public substitute part numbers are available for this specific component. Evaluate the original chipset design for potential obsolescence management strategies.