VSC7964 查看數據表（PDF） - Vitesse Semiconductor
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VSC7964 Datasheet PDF : 2 Pages
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VSC7964
1/2/4 Gbps Integrated VCSEL Driver and Limiting Amplifier
GENERAL DESCRIPTION:
The VSC7964 is a multirate 4.25 Gbps integrated
Vertical Cavity Surface Emitting Laser (VCSEL)
driver and limiting amplifier for Gigabit
Ethernet and Fibre Channel applications
optimized to reduce SFP module cost. A
standard SPI port is provided for programming integrated
digital-to-analog converters for laser bias current, modulation
current, power, modulation peaking current, and the limiting
amplifier loss of signal threshold. The VSC7964 is equipped
with SFP-compliant fault indicators, redundant disable control,
Automatic Power Control, temperature sensor, voltage reference,
various signal monitors, and robust eye safety features. A single
bidirectional pin between the VSC7964 and the VSC7977
transimpedance amplifier programs the receiver bandwidth and
monitors the received optical power. This allows the VSC7964 to
provide an accurate indicator of received power and to select the
TIA bandwidth without increasing TO-CAN pin count. The VSC7964
is available in a 6mm x 6mm 40-pin QFP-N plastic package.
BLOCK DIAGRAMS:
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
©2004 Vitesse Semiconductor Corporation
741 Calle Plano
Camarillo, CA 93012, USA
Tel: +1 805.388.3700
Fax: +1 805.987.5896
www.vitesse.com
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