HXR44101-DNJ

Overview

The HXR44101-DNJ is a single-channel, low-power linear PAM4 Directly Modulated Laser (DML) driver with differential output and anti-reflection buffer design for LR applications. It supports signaling rates up to 56Gbps PAM4. In conjunction with a DML, the device provides complete electrical-to-optical conversion, CML input with equalization, laser bias and modulations, laser power control, and various supervision. The HXR44101 integrates several functions required for Automatic Power Control (APC), as well as internal and module temperature measurements and reporting. With an additional RSSI input, the user can directly measure the module receive optical power and report it. The device is designed as an AC-coupled packaged driver to work with TO-CAN or TOSA type of DML lasers.

Feature Summary

• Supports signaling rates up to 56Gbps PAM4
• Integrates 12-bit ADC with 6-channel analog multiplexer front-end
• Provides programmable 8-bit laser modulation bias current controls
• Includes integrated bias monitor and transmit/receive power monitor capability

Applications

• Long Reach (LR) optical applications
• Directly Modulated Laser (DML) driver systems
• Optical transceiver modules requiring AC-coupled packaging

Procurement Notes

Verify the exact part number against official Renesas documentation to ensure compatibility with specific system requirements. Confirm that the component meets all necessary technical specifications for your intended application before procurement. Check for any updates or revisions in the official datasheet that may affect performance or availability.

Selection Notes

Consider the HXR44101-DNJ for applications requiring high-speed PAM4 signaling up to 56Gbps. Its integrated features such as APC, temperature monitoring, and power control simplify system design. Ensure that the chosen package type is compatible with your PCB layout and thermal management strategy.

Part Context

This component belongs to the family of high-performance optical drivers designed for modern data communication applications. It addresses the need for efficient and reliable laser driving in long-reach scenarios, leveraging advanced signal processing capabilities to maintain signal integrity at high data rates.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult official Renesas documentation or authorized distributors for potential alternatives if this specific model is discontinued or unavailable.