MICROCHIP VSC8247YJB-02

The VSC8247 is a quad-channel Clock and Data Recovery (CDR) receiver with integrated on-chip adaptive Electronic Dispersion Compensation (EDC), programmable input equalization, and optional pre-emphasis output. Operating at rates from 8.5 Gbps to 11.3 Gbps, it is a universal CDR and retimer suitable for all 10G Ethernet and SONET applications. It also supports 8G Fibre Channel and 10G QDR InfiniBand protocols and data rates, as well as all legacy rates. Its flexibility makes it well-suited for emerging 4×10G and 10×10G CFP modules and high-density Photonic Integrated Circuit (PIC) designs. The integrated EDC compensates for signal degradation in both optical and electrical domains. For optical systems, this includes dispersion in long-haul single-mode fiber systems and modal dispersion in multimode fiber systems. The high-performance FFE-DFE EDC technology compensates for fiber signal impairments and PCB-related signal degradation. Feedback from Forward Error Correction devices can be utilized to further optimize and enhance performance. Each channel incorporates an independent VScope input signal monitoring IC and a built-in error detector, facilitating product design, manufacturing, and deployment.

• Broad application support
• High-performance analog EDC
• High-density receiver
• MDIO, two-wire serial master, and two-wire serial slave interfaces
• Embedded microcontroller with on-board RAM, reducing system chip count
• Receive-side EDC programmable to user-defined values or adaptive mode operation
• Output pre-emphasis and signal programming for optimized signal integrity
• VScope input signal monitoring IC for eye diagram opening optimization and BER reduction
• Power-on reset independent of serial interface initialization default mode
• Independent per-channel operation and power-down

• Long-haul single-mode fiber platforms
• Systems supporting forward error correction
• 40G/100G CFP module designs: 4×10G, 10×10G, and 10×12G
• Line cards