Features
- Data rate up to 96Gbaud per channel for 800G and beyond DP-mQAM applications
- >70GHz E/O bandwidth
- >10dB dynamic range of gain control
- 3.8W (typical) at linear 2.0Vpps
- AC-coupled 100Ω differential input/30Ω - 50Ω single-ended output
- Ultra-low inter-channel crosstalk
- Peaking adjustment functionality
- Analog control for gain and output voltage setting, and analog monitor for peak detector and gain control monitor
- Optical Internetworking Forum (OIF)-compliant serial peripheral interface (SPI) digital interface integration
GX79472 Linear Driver with Differential Input and Single-Ended Output Block Diagram
Description
The GX79472 is a low-power, high-performance, quad-channel linear driver chip that is designed for 800G and beyond optical integrated transmitter small form factor (SFF) modules for metro and long-haul applications.
The GX79472 integrates the quad lanes of the driver with SPI circuitry for DC controls on a single die. Each channel of the driver has a 100Ω differential AC-coupled input and a single-ended output with a back-terminated output stage. The output stage allows for an external AC-coupled interface with optical modulators having a wide characteristic impedance range from 30Ω to 50Ω. The linear output voltage of 2.0Vpps is suitable for the lithium niobate (LiNbO3) optical modulators with multi-level modulations.
Applications
- 800G and beyond advanced multi-level QAM modulation systems
- High-bandwidth small form factor optical integrated modules
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Knowledge Base
Browse our knowledge base for helpful articles, FAQs, and other useful resources.
