VSC3304HVEV

Overview

The VSC3304HVEV is an asynchronous crosspoint switch supporting up to 8.5 Gbps per channel with a 4x4 configuration. It operates on a fully asynchronous architecture, eliminating the need for external reference clocks. The device features dual time-constant equalization and programmable output pre-emphasis to mitigate signal degradation across backplanes and cables. Power consumption varies by supply voltage: 1.2 W at 3.3 V, 0.9 W at 2.5 V, or 0.7 W at 1.8 V. It includes configurable I/O ratios from 1x7 to 7x1, LOS detection, and a two-wire serial interface.

Feature Summary

• Fully asynchronous operation supporting transparent data rate and protocol interoperability
• Reconfigurable I/O capability allowing flexible port allocation and multicast routing
• Advanced signal equalization with multiple time constants for input and output compensation
• Programmable loss of signal (LOS) detection and forwarding for envelope propagation

Applications

• Wideband signal switching and clean-up
• Backplane signal fanout, driver, or receiver
• Copper cable driver or receiver
• High-speed signal conditioner

Procurement Notes

Verify the specific suffix 'HV' against official Microsemi documentation to confirm package type and temperature range. Confirm current availability status as product lifecycles may change. Ensure compatibility with system power supplies matching the 1.8 V to 3.3 V operating requirements before procurement.

Selection Notes

Select this component when asynchronous switching without reference clock distribution is required. Evaluate power budgets based on active channels, as unused ports can be deactivated. Verify that the 7 mm x 7 mm BGA package fits the PCB layout constraints. Ensure the application benefits from reconfigurable I/O ratios to minimize chip count.

Part Context

The VSC3304 belongs to the Microsemi/VSC3304 family of high-speed crosspoint switches designed for interconnect applications. It serves as a buffer and signal conditioner for serial links. Related products in the portfolio include other bandwidth variants within the same series for different port counts or speed requirements.

Replacement Considerations

Check for updated Microsemi part numbers if the original manufacturer has undergone restructuring. Verify pin-to-pin compatibility with any alternative crosspoint switches offering similar 8.5 Gbps performance and BGA packaging.