3.6Gb/s 144x144 Asynchronous Crosspoint Switch
Physical
Layer
Products
VSC3140
Product Brief
Features:
•
Per Channel Programmable
Input Equalization
•
Per Channel Programmable
Output Drive Levels
•
On Board PRBS Generator/
Detector
•
Parallel and Serial Programming
Modes
•
Secondary Serial Access Port
for Configuration and Monitoring
•
Non-blocking Architecture with
Broadcast and Multicast
Modes
•
Soft Power Down for Unused
Channels
•
Boundary Scan Support for
Data I/O
•
Integrated Temperature
Sensor/Alarm
•
On-chip Input and Output
Terminations
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.
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 Performance, Re-
ducing the Need for Inter-stage
Retimers in Multi-stage Switch
Fabrics
Applications:
•
•
•
•
•
•
DWDM Platform
Core and Edge Router
Storage Area Network
Wavelength Routers
Digital Cross Connect
Optical Cross Connect
www.vitesse.com
3.6Gb/s 144x144 Asynchronous Crosspoint Switch
Product Brief
VSC3140
Physical
Layer
Products
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 Ports and
Boundary Scan Allow in
System Diagnostic and Moni-
toring of each Input and Output
for Signal Integrity Through the
Entire Switch
VSC3140 Block Diagram
DRIVE [1:0]
SENSE [1:0]
Input signal equalization (ISE)
and scan registers
Switch Core
Output level control
and scan registers
A[143:0]
Y[143:0]
Switch Configuration Register
Specifications:
•
3.6Gb/s NRZ Data Bandwidth
•
144 Inputs by 144 Outputs
Crosspoint Switch
•
Single 2.5V Power Supply
•
2.5/3.3V CMOS/TTL
Control I/O
•
Differential CML Data Output
Driver
•
15/21W Typical Power in Low/
High Drive Mode
•
20/25W Max Power in Low/
High Drive Mode
•
125MHz Multi-mode Program-
ming Port
•
High Performance 45mm,
1.27mm pitch, 1072 BGA
Package
•
Operating Temperature Range
from 0°C to 85°C
RESET
ADDR/DATA
CONFIG
INIT
PARALLEL/SERIAL
CS
WR
RD
ALE
User INIT Register
Secondary
Access Port
Sec_CS
Sec_SDIN
Sec_Write
Sec_Read
Staging Register
Programming Interface
Sec_SCLK
Sec_SDOUT
Temperature
Alarm
OverTemp
PRBS_Out
PRBS
Generator/Detector
PRBS_ErrDet
PRBS_In
PRBS_Clk
Input Signal Equalization Performance
Input Eye Diagram
Output Eye Diagram
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
www.vitesse.com
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and the Vitesse logo are all registered trademarks
of Vitesse Semiconductor Corporation
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