VSC3172

DATA INTERCONNECT VSC3172 6.5 Gbps 72 × 72 Asynchronous Crosspoint Switch BLOCK DIAGRAM: Switch Core Inputs [71:0] EQ EQ Outputs [71:0] VSC3172 Programming Interface F E AT U R E S : 6.5 Gbps 72 × 72 strictly nonblocking switch matrix with multicast and output striping programming modes Fourth-generation input signal equalization (ISE) with programmable control globally or on a per-channel basis Adjustable output pre-emphasis EQ Differential current mode logic (CML) data output driver Protocol-independent switching and data transmission 10-W typical power dissipation 33 mm × 33 mm, 1.27 mm pin pitch, 613-pin FCBGA package Parallel and serial programming modes for configuration and monitoring Software control to optimize power dissipation BENEFITS: 468-Gbps aggregate bandwidth in a single chip for high-density network storage, FC, blade server, and Ethernet systems Addresses system-level and board-level signal integrity (SI) and intersymbol interface (ISI) jitter issues EQ and drive flexibility for driving boards, cables, and circuit traces Convenient I/O flexibility for interfacing with multiple standards Can be used with latest storage, Ethernet, and networking standards Low 140-mW per-channel power dissipation Layout-friendly package and pinout for easier PCB design Programming and control convenience Controlled power reduction for unused ports A P P L I C AT I O N S : Core and metro transport Enterprise Blade servers High-speed automated test equipment Broadcast video systems Storage, Ethernet, and networking equipment VPPD-01586 Revision 1.0 VSC3172 6.5 Gbps 72 × 72 Asynchronous Crosspoint Switch GENERAL DESCRIPTION: The VSC3172 is a 72 × 72 asynchronous crosspoint switch, designed to carry broadband data streams. The fully nonblocking switch core is programmed through a multimode port interface that allows random access programming of each input and output port. Each high-speed output is a fully differential switched current driver with on-die terminations for maximum signal integrity. Its multimode programming interface allows commands to be sent as serial data or as multiplexed parallel data. Core programming can be sequential on a port-by-port basis, or multiple program assignments can be queued and issued simultaneously. 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. VSC3172 A high degree of signal integrity is maintained throughout the device by fully differential signal paths. Programmable input EQ and output pre-emphasis settings enable maximum customization for the application. Each data output can be programmed to connect to one of the inputs. The signal path is unregistered and fully asynchronous, so there are no restrictions on the phase, frequency, or signal pattern on any input. B A C K P L A N E A P P L I C AT I O N : Line Cards OE FPGA/ ASIC B a c k p l a n e Central Switch VSC3172 S P E C I F I C AT I O N S : 6.5-Gbps NRZ per-channel data rate 2.5-V power supply (2.5-V or 3.3-V program port power supply) 2.5-V or 3.3-V CMOS TTL-compatible I/O Differential CML I/O with integrated termination impedance 0 °C to 85 °C operating temperature range Trademarks TM Vitesse, ASIC-Friendly, FibreTimer, TimeStream, Snoop Loop, Super FEC, FOCUSConnect, Meigs-II, Meigs-IIe, Lansing, Campbell-I, Barrington, PaceMaker, HOVCAT48, HOVCAT48e, HOVCAT192, HOVCAT192e, Micro PHY, FOCUS32, FOCUS16, IQ2200, NexSAS, VersaCAT, GigaStream, HawX, SparX, StaX, VstaX, SimpliPHY,VeriPHY, ActiPHY, XFP PRO, SFP PRO, Smart-LINK, OctalMAC, EQ Technology are trademarks in the United States and/or other jurisdictions of Vitesse Semiconductor Corporation. All other trademarks or registered trademarks mentioned herein are the property of their respective holders. Copyright © 2006 Vitesse Semiconductor Corporation (“Vitesse”) retains the right to make changes to its products or specifications to improve performance, reliability or manufacturability. All information in this document, including descriptions of features, functions, performance, technical specifications and availability, is subject to change without notice at any time. While the information furnished herein is held to be accurate and reliable, no responsibility will be assumed by Vitesse for its use. Furthermore, the information contained herein does not convey to the purchaser of microelectronic devices any license under the patent right of any manufacturer. 741 Calle Plano Camarillo, CA 93012, USA Tel: +1 805.388.3700 Fax: +1 805.987.5896 www.vitesse.com sales@vitesse.com