NT22L33-QFN

Overview

The NT22L33 is a laser driver IC designed for OC-3 and Gigabit Ethernet applications. It delivers up to 70 mA of modulation current and 80 mA of bias current. The device operates with +3.3 V or +5.0 V power supplies and drives common-anode lasers. It features a QFN package compatible with the MAX3646 pinout.

Feature Summary

• Provides high-speed laser driving capability for optical communication interfaces
• Supports operation with standard voltage levels for flexible system integration
• Enables drive of common-anode laser diodes with integrated control functions

Applications

• OC-3 optical transmission systems
• Gigabit Ethernet (GbE) links
• Point-to-point fiber optic communications

Procurement Notes

Verify the specific suffix against official Semtech documentation to confirm exact package type and temperature range. Ensure the component matches the required pinout compatibility for existing designs referencing MAX3646 equivalents. Confirm RoHS compliance status through the manufacturer's latest ordering information before procurement.

Selection Notes

Select this component for applications requiring a compact solution for OC-3 or GbE standards. The device offers sufficient current drive for common-anode lasers while maintaining low power consumption. Consider the available supply voltages and the need for direct pin-compatible replacement when evaluating this driver for new or legacy designs.

Part Context

This part belongs to Semtech’s family of laser drivers and transceivers, which utilize CMOS technology for cost-effective optical solutions. The series supports various signaling rates and includes integrated limiting amplifiers and digital diagnostics in other models within the portfolio.

Replacement Considerations

The datasheet indicates pin compatibility with the MAX3646 laser driver. Verify electrical specifications and thermal requirements match the target application before substituting.