HXT6112-DNT

Overview

The HXT6112-DNT is a 12-channel VCSEL driver array designed for compact optical transmitter modules. It operates at data rates up to 16 Gbps and consumes 46 mW per channel while delivering 5 mA average and modulation currents, with maximums of 10 mA average/modulation and 15 mA burn-in current. The device supports common cathode and isolated VCSEL arrays via a 2-wire interface. It is InfiniBand QDR/FDR compliant and functions within a temperature range of 0°C to 70°C.

Feature Summary

• Handles complete digital-to-optical conversion including CML input, laser driver, drive control, and supervision.
• Utilizes standard silicon technology for cost-effective and compact module assemblies.
• Features symmetric pad design and 2-wire interface control to maximize module design flexibility.

Applications

• InfiniBand QDR/FDR compliant optical transceivers
• Compact low-power optical transmitter modules
• Data center interconnect applications requiring high-density VCSEL integration

Procurement Notes

Verify the specific ordering suffix and package type against the manufacturer's latest datasheet before procurement. Confirm that the wafer fabrication origin and temperature range meet your system requirements. Ensure compatibility with your VCSEL array configuration, as the driver supports both common cathode and isolated types. Check for any recent product change notifications regarding labeling or material composition updates.

Selection Notes

Select this component when designing systems requiring 12 channels of VCSEL driving capability at speeds up to 16 Gbps. Consider its low power consumption profile for thermal management in dense packaging. Verify that the CML input interface matches your source driver outputs. Ensure the operating temperature range aligns with your environmental specifications, noting the distinction between commercial and extended ranges if applicable.

Part Context

The HXT6112 is part of Renesas' HXT series of high-speed laser drivers. This specific die variant is intended for integration into custom optical modules rather than standalone evaluation boards. It complements other devices in the family like the HXT6101 and HXT6104, offering higher channel density for advanced networking standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official advisory documents for potential obsolescence notices or recommended alternatives if discontinuation occurs.

FAQ

What is the maximum modulation current supported by the HXT6112?

The HXT6112 supports a maximum modulation current of 10 mA, with a typical operating point of 5 mA per channel.

Is the HXT6112 compatible with common cathode VCSEL arrays?

Yes, the HXT6112 is explicitly designed to be compatible with both common cathode and isolated VCSEL arrays.

What interface does the HXT6112 use for control?

The device utilizes a 2-wire interface for control and configuration purposes.