NETWORK PRODUCTS
VSC7104, VSC7108
VSC7104 – Quad Signal Conditioner, VSC7108 – Octal Signal Conditioner
BENEFITS: Enables Operation at Higher Data Rates and/or Improves Operating Margins Controls Difficult Signal Integrity Problems Asynchronous Operation Allows Application Across any Data Format and Rate Low Skew Enables Precision Fan-out Buffering S P E C I F I C AT I O N S : 0 to 6.5 Gbps Data Rate 20ps Added Jitter 20ps Channel to Channel Skew A P P L I C AT I O N S : 2.5V Power Supply with a 3.3V Option Backplane Signal Enhancement 50ps Output Rise/Fall Time Wideband Signal Clean-up Line Driver/receiver F E AT U R E S : High Data Rate Support, up to 6.5 Gbps Integrated Equalization Global Programmable Input Signal Equalization (ISE) and Output Drive Levels Soft Power-down for Unused Channels Compact Form Factor Single Supply Operation Highly Programmable Robust Operation Across Voltage and Temperature Fully Asynchronous Operation Excellent Crosstalk and Noise Immunity
Input EQ Control Output Pre-emphasis Control
50Ω Output Source Termination 100Ω Input Differential Termination 250mW Per Channel Power Dissipation 100mV – 2400mV Input Signal Range 550mV – 1100mV Programmable Output Swing VSC7108 BLOCK DIAGRAM:
EQ
Differential Input
EQ
Differential Output
Control I/F
.
PB-VSC7104,7108-001
VSC7104,VSC7108
VSC7104 – Quad Signal Conditioner, VSC7108 – Octal Signal Conditioner
GENERAL DESCRIPTION: The VSC7108 and VSC7104 are Signal Conditioners designed to carry broadband data streams, enabling next generation backplane designs and extending the life of existing backplanes. The function of these devices is simple yet powerful, creating multiple applications just about anywhere highspeed signals are present. The integrated equalization capabilities at both the input and output effectively absorb the effects of signal loss through copper interconnect, either printed circuit board traces or cable. A high degree of signal integrity is maintained throughout the chip by fully differential signal paths. The signal path is unregistered and fully asynchronous so that there are no 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.
Signal Conditioning Application
Lossy Backplane
ASIC
7108
7108
ASIC
Cable
Serial Repeater as a Multiple Rate/Multiple Protocol Serializer with Signal Clean-Up
1.25Gbps 2.5Gbps VSC7104 1.25Gbps 2.5Gbps
VSC7104 HSSDC2 CX-4 4x1.0 - 4.25Gb/s . 4x1.0 - 4.25Gb/s .
VSC7104
3.125Gbps 4.25Gbps 3.125Gbps 4.25Gbps
ASIC/FPGA with Integrated SerDes 4x1.0 - 4.25Gb/s .
VSC7104
4x1.0 - 4.25Gb/s .
Copper Cable
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
Vitesse, ASIC-Friendly, FibreTimer, TimeStream and Snoop Loop are trademarks of Vitesse Semiconductor Corporation. All other trademarks or registered trademarks mentioned herein are the property of their respective holders. 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.
741 Calle Plano Camarillo, CA 93012, USA Tel: +1 805.388.3700 Fax: +1 805.987.5896 www.vitesse.com
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