VCS3140 - Vitesse Semiconductor - Datasheet.Technology

PHYSICAL LAYER PRODUCT

VSC3140

3.6Gb/s 144x144 Asynchronous Crosspoint Switch

PHYSICAL LAYER PRODUCT

PB-VSC3140-001

FEATURES:

!3.6Gb/s, 144x144 Strictly Nonblocking Switch Matrix with Dual

User Configuration Registers and Multicast and Address Striping

Programming Modes

!3rd Generation Input Signal Equalization (ISE) 'Eye Opener' Technology

with Global and Per Channel Multilevel Programmable Control

!At-Speed Built-in Self-Test (BIST) Capability with Auxiliary DRIVE

and SENSE I/O, on Board PRBS Generator/Detector, and Programmable

Temperature Alarm/Sensor

!Global and Per Channel Programmable CML Output Level Control

with Integrated Back Termination

!Parallel and Serial Programming Modes with Secondary

Serial Access Port for Configuration and Monitoring

!Software Control to Optimize Power Dissipation

BENEFITS:

!3.6Gb/s NRZ performance provides protocol transparency with

exceptional performance and margin for 2.5Gb/s and 3.125Gb/s

switching applications.

!Advanced ISE ('Eye Opener') capabilities to reduce Inter Symbol

Interference (ISI) due to PCB losses and/or copper cable losses to

enable longer back planes or shelf to shelf interconnects.

!BIST (System) features Enable Simplified Design, Verification,

Production Testing at the Board or System Level, and in Application

Signal Monitoring.

!Enhanced Signal Integrity and Package Design for Ease of PCB

Design

APPLICATIONS:

!Large 3 Stage CLOS Fabrics of up to 2,880x2,880 I/O Ports with up

to 10Tb/s of Data Throughput

!DWDM Switches

!Wavelength Routers

!Storage Area Network (SAN) Switch Fabrics

!Packet Switching Fabrics

MARKETS:

!Core and Metro Transport

!Enterprise

!High-Speed Automated Test Equipment

!Broadcast Video

SPECIFICATIONS:

!3.6Gb/s NRZ Data Rate

!2.5V Power Supply [2.5V/3.3V Program Port Power Supply]

!2.5V/3.3V CMOS TTL Compatible I/O

!Differential CML I/O with Integrated Termination Impedance

!16W Typical Power Dissipation with Output Levels

!45x45mm, 1.27mm Pitch, 1072 BGA Package

!0˚C to +85˚C Operating Temperature Range

741 Calle Plano

Camarillo, CA 93012

Tel: 805.388.3700

Fax: 805.987.5896

www.vitesse.com

Your Partner for Success.

For more information on Vitesse Products visit the Vitesse web site

at www.vitesse.com or contact Vitesse Sales at (800) VITESSE

or sales@vitesse.com

The VSC3140 is a 144x144 asynchronous

crosspoint switch, designed to carry

broadband data streams. The fully non-

blocking switch core is programmed through

amulti-mode port interface that allows

random access programming of each

input/output port. A high degree of signal integrity is maintained

throughout the chip by fully differential signal paths.

Each data output can be programmed to connect to one of the

144 inputs. The signal path is unregistered and fully

asynchronous, so there are not any restrictions on the phase,

frequency, or signal pattern on any input. Each high-speed

output is a fully differential switched current driver with on-

die terminations for maximum signal integrity. Data inputs are

terminated on die through 100Ωresistors between true and

complement inputs with a common connection to an internal

bias source, facilitating AC-coupling to the switch inputs.

A multi-mode, programming interface is provided that allows

commands to be sent as serial data or multiplexed parallel

GENERAL DESCRIPTION:

3.6Gb/s 144x144 Asychronous Crosspoint Switch

data. Core programming can be sequential on a port by port

basis, or multiple program assignments can be queued and

issued simultaneously using the CONFIG bit. The INIT feature

will reset the entire switch into a "straight-through"

configuration (A0 to Y0, A1 to Y1, etc.) or it can be programmed

by the user to initialize to any other configuration.

Programming of the VSC3140 is via an 11-bit multiplexed

ADDR/DATA bus in conjunction with the ALE, RD, WR, CONFIG

and INIT pins. Additionally, the CONFIG and INIT signals can

be set via an internal control register to reduce the number of

signals required to interface with the switch. To lock-in

programming of switch connections, INIT, and CONFIG can be

disabled through software.

Unused channels may be powered down to allow efficient

use of the switch in applications that require only a subset of

the channels. Power-down is enabled in software by

programming individual unused outputs with a power-down

code. A secondary access port allows asynchronous

readback and configuration control to take place while the

primary programming port is in use.

VSC3140

Signal through 50” of microstrip trace

Signal through 150” of microstrip trace

Signal output with ISE enabled

INPUT SIGNAL EQUALIZATION (ISE) - SUPERIOR EYE OPENING TECHNOLOGY: