VSC8486YJB-11

Overview

The VSC8486YJB-11 is a single-channel 10 Gbps XAUI to XFI LAN/WAN transceiver manufactured by Microchip Technology. It operates at a data rate of 10 Gb/s and utilizes an MDIO serial interface for management. The device supports both LAN and WAN modes, including SONET/SDH overhead processing via the WIS sublayer. It features comprehensive loopback capabilities across multiple layers, such as PMA, PCS, and PHY-XS, for diagnostic testing. The component is housed in a BGA package and requires specific power supply voltages for operation.

Feature Summary

• Supports conversion between XAUI and XFI interfaces with integrated clock and data recovery.
• Includes a complete WAN Interface Sublayer (WIS) for SONET/SDH section, line, and path overhead handling.
• Provides extensive internal loopback paths for system validation and fault isolation.
• Features programmable transmitter pre-emphasis and slew rate control for signal integrity optimization.

Applications

• SONET/SDH network infrastructure equipment
• 10 Gigabit Ethernet media converters
• Optical transport network (OTN) systems

Procurement Notes

Verify the exact ordering suffix against the manufacturer's current datasheet VMDS-10297 to ensure compatibility with required temperature ranges and packaging options. Confirm that the component status is active for new designs, as legacy variants may be discontinued. Cross-reference the pinout diagram with the target PCB layout to validate mechanical fitment before procurement.

Selection Notes

Select this component when a single-channel 10G transceiver with full WAN overhead processing is required. Ensure the design accommodates the necessary external reference clock circuitry and phase-locked loop filter components specified in the electrical characteristics. Verify that the host processor supports the MDIO or Two-Wire Serial Interface for configuration and monitoring.

Part Context

This part belongs to the VSC8486 family of high-performance Ethernet transceivers designed for optical interconnects. It serves as a bridge between MAC controllers using XAUI and optical modules utilizing XFI interfaces. The device integrates physical layer functions to support long-haul and metropolitan area network applications requiring precise timing and error monitoring.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's discontinuation notices or product selector guides for potential obsolescence management strategies if this specific variant is no longer recommended for new designs.

FAQ

Does the VSC8486YJB-11 support SONET/SDH overhead processing?

Yes, the device includes a dedicated WAN Interface Sublayer (WIS) that handles section, line, and path overhead for SONET/SDH frames.

What types of loopbacks are supported?

The transceiver supports multiple loopback configurations including PMA, PCS, PHY-XS, and system-level loopbacks for comprehensive testing.

How is the device managed and configured?

Configuration and status monitoring are performed via a standard MDIO serial interface or a Two-Wire Serial Interface.