# VSC3104, VSC3108 Crosspoint Switches

## General Description
· The VSC3104 is a 4x4 crosspoint switch.
· The VSC3108 is an 8x8 crosspoint switch.
· Both feature integrated equalization for improved signal integrity in backplane and cable applications.

## Features
· Data Rate: Up to 6.5 Gb/s
· Integrated equalization
· Low cost, compact form factor
· Single supply operation (2.5V, 3.3V option)
· Highly programmable
· Robust operation across voltage and temperature
· Fully asynchronous operation
· Excellent crosstalk and noise immunity

## Specifications
· Added Jitter: 20ps
· Channel-to-Channel Skew: 10ps
· Output Rise/Fall Time: 50ps
· Output Source Termination: 50Ω
· Input Differential Termination: 100Ω
· Power Dissipation: 250mW per channel
· Input Signal Range: 100mV – 2400mV
· Output Swing: 550mV – 1100mV (programmable)

## Applications
· Backplane Driver/Receiver
· Loop-back Switch
· Protection Switching
· Fan-out Buffering
· Cable Driver/Receiver
· Wire Re-ordering

## Block Diagram Components (VSC3108)
· Programming Interface
· PRBS Generator/Detector
· Switch Configuration Register
· Switch Core
· Input Signal Equalization (ISE)
· Output Level Control & Pre-Emphasis