GX76471-DNT

Overview

The GX76471-DNT is a low-power, high-performance quad-channel linear driver chip designed for 400G/600G optical integrated transmitter small form factor (SFF) modules used in metro and long-haul applications. It integrates four driver lanes with SPI circuitry for DC controls on a single die. Each channel features a 100Ω differential AC-coupled input and a 55Ω differential DC-coupled output. The device provides a linear output voltage of 2.8Vppd, which is suitable for InP multi-level modulations. It operates within a temperature range of -5°C to 105°C.

Feature Summary

• Integrates quad-lane drivers with SPI control circuitry on a single die
• Provides differential AC-coupled inputs and differential DC-coupled outputs per channel
• Delivers linear output voltage suitable for InP multi-level modulations

Applications

• 400G/600G optical integrated transmitter SFF modules
• Metro and long-haul optical communication systems
• Advanced multi-level QAM modulation systems

Procurement Notes

Verify the specific suffix DNT against official Renesas documentation to confirm package type and material specifications. Ensure compatibility with wafer-level packaging requirements. Confirm moisture sensitivity level handling procedures during assembly. Validate that the component meets the required environmental operating temperatures for the target application.

Selection Notes

Select this component for designs requiring integrated SPI control and linear drive capabilities for InP modulators. Verify that the 2.8Vppd output swing matches the modulator drive requirements. Ensure the system architecture supports differential AC-coupled inputs and differential DC-coupled outputs. Check thermal management needs for the specified operating temperature range.

Part Context

The GX76471 belongs to Renesas' optical modulator driver family, specifically engineered for high-speed data transmission. It complements other drivers like the GX76470 by offering integrated control features. This series targets advanced optical networking infrastructure requiring high linearity and low power consumption for next-generation transceivers.

Replacement Considerations

Consult official Renesas documentation for qualified substitutes. The GX76470 is listed as a related product in the same family but may differ in specific interface or performance characteristics. Do not assume interchangeability without verifying pinout, electrical parameters, and functional compatibility through official datasheets.