NB4L16MMNR2

Translators, Level Shifters Overview

The NB4L16MMNR2 is a differential driver, receiver, buffer, and translator manufactured by onsemi. It accepts LVPECL, LVDS, CML, HSTL, LVCMOS, or LVTTL inputs and produces a 400 mV CML output. The device supports maximum input clock frequencies up to 3.5 GHz and data rates up to 5.0 Gb/s. It features internal 50 Ω termination resistors for both inputs and outputs, eliminating the need for external components. Operating within a VCC range of 2.375 V to 3.6 V with VEE at 0 V, it provides low jitter performance with typical propagation delay of 220 ps and rise/fall times of 60 ps. The component is housed in a 3x3 mm 16-pin QFN package.

Translators, Level Shifters Feature Summary

• Accepts multiple single-ended and differential input signal levels including LVPECL, LVDS, CML, HSTL, LVCMOS, and LVTTL.
• Generates a 400 mV peak-to-peak differential CML output suitable for high-speed transmission lines.
• Integrates internal 50 Ω termination resistors at both input and output ports to simplify circuit design.
• Provides an internally generated VBB reference voltage for biasing capacitor-coupled signals or single-ended configurations.

Translators, Level Shifters Applications

• SONET network interfaces
• Gigabit Ethernet (GigE) connections
• Fiber Channel systems
• High-speed backplane interconnects

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct packaging configuration. Confirm that the requested variant matches the required tape and reel specifications or tube quantities. Cross-reference the date code and assembly location markings with the latest datasheet revision to guarantee compliance with RoHS and halogen-free requirements. Ensure the supply voltage parameters align with the target application's power rails before finalizing procurement.

Translators, Level Shifters Selection Notes

Select this component when interfacing between disparate logic families requiring translation to CML standards. The integrated termination resistors reduce bill-of-materials complexity compared to discrete solutions. Evaluate the operating temperature range and thermal resistance characteristics if the application involves high ambient temperatures or limited airflow. Consider the low jitter specifications for sensitive timing applications where signal integrity is critical.

Translators, Level Shifters Part Context

This device belongs to the NB4L16M family of high-speed interface circuits designed for signal conditioning and level shifting. It functions as a versatile translator capable of handling various input formats while maintaining signal integrity through internal impedance matching. The family targets applications demanding high data throughput and low skew in compact form factors.

Translators, Level Shifters Replacement Considerations

Consult official substitution guides for functionally compatible devices within the same product family. Verify pinout compatibility and electrical parameter equivalence before replacing existing components. Ensure any substitute part meets the same thermal and environmental ratings required by the original design.

Translators, Level Shifters FAQ

How should the unused complementary differential input be handled for single-ended operation?

For single-ended input configurations, connect the unused complementary differential input to the VBB pin, which serves as a switching reference voltage.

What is the purpose of the VTD pins on the device?

The VTD pins are used to connect the internal 50 Ω termination resistors to a common termination voltage, ensuring proper signal termination at the input stage.

Can the device operate with AC-coupled input signals?

Yes, for AC-coupled inputs, the VTD and VTD pins should be connected together and biased within the common mode range, typically using the VBB reference voltage.