®
VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Data Sheet
VSC7132
Features
• Replicates Fibre Channel, Gigabit Ethernet and
HDTV Links
• T11 Fibre Channel Compliant at 1.0625Gb/s
• IEEE802.3z Gigabit Ethernet Compliant at 1.25Gb/s
• SMPTE-292M Compliant at 1.485Gb/s
Link Replicator for Fibre
Channel, Gigabit Ethernet and HDTV
• No External Components Required
• 0.4W Maximum Power Dissipation
• 3.3V Power Supply
• 28-Pin, 4.4 x 9.7mm TSSOP Package
General Description
The VSC7132 is a high performance serial Link Replicator for applications in Fibre Channel (1.0625Gb/s),
Gigabit Ethernet (1.25Gb/s) and HDTV (1.485Gb/s). A serializer/deserializer, such as the VSC7123, would
normally be connected to the IN+/- and OUT+/- ports in order to provide duplicate links on the IN0/OUT0 and
IN1/OUT1 ports. A popular application is for Line Cards using serial links from a SerDes (VSC7123) or Serial
Backplane IC (VSC7211) where the VSC7132 provides redundant, hot-swappable links to redundant Switch
Fabric Cards. Another common application is in Host Adapters which require an internal and an external con-
nector where the VSC7132 steers serial data between the SerDes (VSC7123) and the two connectors.
IN is sent to both OUT0 and OUT1 whose buffers are enabled when OE0 and OE1 are HIGH. OUT1 can
select between IN and IN0. OUT can select between IN0 and IN1.
In Link Replicator applications, such as the Line Card to Switch Card links, IN is transmitted to both OUT0
and OUT1, which either IN0 or IN1 is selected at OUT. In Host Adaptor applications, IN goes to OUT0 (an
internal connector) which returns data on IN0. IN0 is looped to OUT1 (an external connector) which returns
data on IN1 and then back to the SerDes on OUT.
VSC7132 Block Diagram
IN0+
IN0-
OE0
IN+
IN-
OUT+
OUT-
MUX
0
1
0
1
OUT0+
OUT0-
VSC7132
TX
SERDES
RX
LOOP0
IN1+
IN1-
OE1
OUT1+
OUT1-
MUX1
LOOP1
VSC7123
G52243-0, Rev 3.0
9/21/00
©
VITESSE
SEMICONDUCTOR CORPORATION
• 741 Calle Plano • Camarillo, CA 93012
Tel: (800)-VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
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