GX76474-F-DNT

Overview

The GX76474-F-DNT is a quad-channel linear driver integrated circuit manufactured by Renesas Electronics. Designed for high-performance optical applications, it supports data rates up to 64 Gb/s per channel. The device features a differential AC-coupled input with 100Ω impedance and a differential interface output with 60Ω impedance. It provides a linear output voltage of 4.0Vppd, making it suitable for driving silicon photonics modulators and supporting multi-level modulation schemes. The component integrates SPI circuitry for DC control functions on a single die.

Feature Summary

• Quad-channel linear driver architecture optimized for low power consumption
• Integrated serial peripheral interface (SPI) for direct DC control management
• Open-collector output stage design compatible with silicon photonics modulators
• Supports advanced multi-level modulation formats including QAM

Applications

• 400G/600G optical integrated transmitter small form factor modules
• Metro and long-haul telecommunications transmission systems
• Advanced multi-level QAM modulation systems

Procurement Notes

Verify the specific suffix -F-DNT against official Renesas documentation to confirm package type and manufacturing details. Confirm current lifecycle status as distribution channels may list this part as discontinued or limited supply. Ensure compatibility with existing system designs before procurement.

Selection Notes

Select this component for applications requiring high-speed linear driving of external modulators. Verify that the 4.0Vppd output swing meets the drive requirements of the target silicon photonics modulator. Ensure the system design accommodates the 100Ω differential input and 60Ω differential output impedances for proper signal integrity.

Part Context

This part belongs to the GX76474 family of optical modulator drivers from Renesas. It shares functional similarities with other members like the GX76471 and GX76476-F but differs in specific output voltage levels and interface characteristics tailored for different modulator technologies such as silicon photonics.

Replacement Considerations

Consult official Renesas substitution guides for verified alternatives. Generic equivalents are not recommended due to precise impedance and voltage matching requirements in coherent optical transceivers.