VSC3140 - Vitesse Semiconductor - Datasheet.Technology

www.vitesse.com

Product Brief

3.6Gb/s 144x144 Asynchronous Crosspoint Switch

Physical

Layer

Products

VSC3140

General Description

The VSC3140 is a 144x144 asynchro-

nous crosspoint switch, designed to

carry broadband data streams. The fully

non-blocking switch core is pro-

grammed through a multi-mode port in-

terface that allows random access pro-

gramming of each input/output port.

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 no restric-

tions on the phase, frequency, or sig-

nal pattern on any input. Each high-

speed output is a fully differential

switched current driver with on-die ter-

minations for maximum signal integrity.

A multi-mode, programming interface is

provided that allows commands to be

sent as serial data or multiplexed par-

allel data. Unused channels may be

powered down to allow efficient use of

the switch in applications that require

only a subset of the channels. A sec-

ondary serial access port allows asyn-

chronous readback and configuration

control to take place while the primary

programming port is in use.

Features:

•P er Channel Progr ammable

Input Equalization

•P er Channel Progr ammable

Output Drive Levels

•On Board PRBS Generator/

Detector

•Parallel and Serial Programming

Modes

•Secondary Serial Access Por t

for Configuration and Monitoring

•Non-blocking Architecture with

Broadcast and Multicast

Modes

•Soft Power Down for Unused

Channels

•Boundar y Scan Support for

Data I/O

•Integrated T emperature

Sensor/Alarm

•On-chip Input and Output

Terminations

Benefits:

•144x144 Inputs and Outputs

Allow Creation of 3-stage Clos

Switch Fabrics of up to 10368 x

10368 Array Providing up to 37

Terabits of Data Throughput

•Programmable Integrated

Signal Equalization (ISE) Func-

tion Improves Output Jitter and

Multi-pass Perfor mance, Re-

ducing the Need for Inter-stage

Retimers in Multi-stage Switch

Fabrics

•DWDM Platf orm

•Core and Edge Router

•Storage Area Network

•Wavelength Routers

•Digital Cross Connect

•Optical Cross Connect

Applications:

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

and the Vitesse logo are all registered trademarks

of Vitesse Semiconductor Corporation

www.vitesse.com

Product Brief

Physical

Layer

Products

VSC3140 Block Diagram

Benefits Continued:

•Programmable ISE and Pro-

grammable Output Drive Level

on an Individual Channel Basis

Allow Users to Optimize the

Switch Operation Based on

System Requirements

•System Level Features such

as Drive/Sense I/O Por ts and

Boundary Scan Allow in

System Diagnostic and Moni-

toring of each Input and Output

f or Signal Integrity Through the

Entire Switch

Specifications:

•3.6Gb/s NRZ Data Bandwidth

•144 Inputs by 144 Outputs

Crosspoint Switch

•Single 2.5V Po wer Supply

•2.5/3.3V CMOS/TTL

Control I/O

•Differential CML Data Output

Driver

•15/21W Typical Pow er in Low/

High Drive Mode

•20/25W Max Power in Low/

High Drive Mode

•125MHz Multi-mode Program-

ming P o rt

•High P erf ormance 45mm,

1.27mm pitch, 1072 BGA

Package

•Operating T emperature Range

from 0°C to 85°C

Input Signal Equalization Performance

3.6Gb/s 144x144 Asynchronous Crosspoint Switch

VSC3140

Input Eye Diagram Output Eye Diagram

User INIT Register

Staging Register

Input signal equalization (ISE)

and scan registers

Output level control

and scan registers

Switch Configuration Register

Programming Interface

Temperature

Alarm

PRBS

Generator/Detector

Switch Core

CONFIG

DRIVE [1:0] SENSE [1:0]

ADDR/DATA

ALE

Sec_SDIN

Sec_Write

Sec_Read

Sec_SCLK

Sec_SDOUT

Secondary

Access Port

PRBS_Out

PRBS_ErrDet

PRBS_In

PRBS_Clk

OverTemp

Sec_CS

A[143:0] Y[143:0]

RESET

INIT

PARALLEL/SERIAL CS